AGASERVICECO MAR TT Charge On Credit Card [Uncovered]

You booked a Marriott stay. Later your card shows AGASERVICECO MAR TT. The hotel name is gone. The letters look like a company you never typed.

That line is usually travel insurance, not the room itself. Allianz Partners has said on its own site that an “AGA Service Company” card charge is Allianz Partners, often bought during another purchase such as a ticket or trip.

Marriott also says it offers Allianz travel insurance during booking on Marriott.com and the Bonvoy app.

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What Is an AGASERVICECO MAR TT Charge on a Credit Card?

An AGASERVICECO MAR TT charge on credit card is a merchant descriptor. Banks print a short billing name when AGA Service Company charges your card.

AGA Service Company is a real U.S. firm at 9950 Mayland Drive, Richmond, Virginia. Allianz’s purchase agreement states that Allianz Partners is a mark of AGA Service Company doing business as Allianz Partners or its affiliates.

AGA Service Company is the licensed producer and administrator of Allianz Travel Insurance plans sold to U.S. residents.

“MAR TT” is not spelled out on Allianz’s consumer FAQ. The usual reading, based on booking partners and statement extras, is a Marriott sales channel plus trip or travel protection.

Confirm that with your Marriott reservation and Allianz email. Do not treat the letters alone as proof of coverage details.

The hotel bill and the insurance bill are separate. Marriott charges the stay. AGA Service Company charges the optional plan if you added it, or if a checkout box was selected.

How This Charge May Appear on Your Statement

Issuers shorten the same payment in different ways. Match the date and amount, not only the letters.

What you may see	What it often points to
AGASERVICECO MAR TT	AGA Service Company billing, often tied to a Marriott checkout
AGASERVICECO MAR T ALLIANZINS.US VA	Same company, with Allianz and Virginia on the line
AGASERVICECO MAR TT 8042853300 VA	Same billing name plus a Richmond-area number that appears on some records
AGA SERVICE CO RICHMOND VA	The legal company name and city
PENDING or PRE-AUTH AGASERVICECO	A hold that may post later
POS REFUND AGASERVICECO MAR TT	A credit back to the card

A small amount is common. Travelers and office managers have described charges around $13 to $25 on one booking, and higher amounts when the trip cost is larger. Those figures are examples from consumer reports, not a price list. Your premium depends on trip cost, coverage, and state rules.

The charge can post one to three days after the hotel reservation. It can also hit a card that is different from the one used for the room, if you entered another card at the insurance step.

Why You Might Not Remember Adding It

Marriott’s help page says you can select travel insurance on the payment page when you book on Marriott.com or the Bonvoy app. The box can sit under the room total. It is easy to miss on a phone.

Allianz says customers sometimes worry when the statement says “AGA Service Company, Richmond.” The company tells you to search inbox and spam for an Allianz confirmation. That email should name the coverage.

Other common reasons:

A coworker booked rooms on a shared or corporate card
You booked more than one reservation and each stay added a plan
You bought ticket protection for an event, which Allianz also sells under AGA Service Company
A pending hold posted after you thought checkout was finished

This is not a gas-appliance shop and not A-Gas the refrigerant firm. Those are different businesses. Richmond, VA plus Allianz or MAR TT points to travel protection.

How to Confirm the Charge

Work from records you already have.

Write the posted date and exact amount.
Search email for “Allianz,” “AGA,” “trip protection,” and the charge date. Check spam.
Open your Marriott reservation and look for travel insurance or trip protection on the receipt.
Sign in at allianztravelinsurance.com to manage a plan if you have a policy number.
Ask anyone who used the card for hotel bookings.

Allianz’s fraud-and-complaints page is direct. If you meant to buy the coverage, you are done identifying the charge.

If you did not, Allianz says you generally have at least 15 days from the purchase date to cancel for a refund, depending on your state, if you have not departed and have not filed a claim.

You can cancel online through Allianz’s plan tools or call the numbers Allianz publishes.

Published Allianz consumer numbers include 1-866-884-3556 for questions about an unexpected AGA Service Company charge, and 800-284-8300 as a contact line listed with the Richmond address and customerservice@allianzassistance.com. Use those pages, not a number from a pop-up ad.

Some statements print 804-285-3300. Missouri’s insurance department listing for AGA Service Company shows that phone with the Mayland Drive address. Prefer the toll-free lines on Allianz’s current consumer pages when you call.

Is AGASERVICECO MAR TT a Scam?

The company behind the usual version of this line is legitimate. AGA Service Company is an active corporation with a long public filing history, and Allianz explains the descriptor in its own words.

A real name can still be used in a way you did not intend. Treat the charge as a problem if:

You have no Marriott or travel booking near that date
No Allianz email exists after a careful search
Nobody in your household or office added protection
Extra AGASERVICECO lines keep posting with no new trips
The amount is far larger than any trip you booked

Then call your card issuer the same day and ask about an unauthorized charge.

For consumer credit cards, the Fair Credit Billing Act generally covers billing errors, including unauthorized charges, when you report them in time.

A written notice is generally due so the issuer receives it within 60 days after the first statement that showed the charge was sent.

Lock the card in your app if the activity looks stolen. Review nearby charges from the same week.

How to Cancel Coverage or Request a Refund

Start with Allianz if the charge matches a plan you did not want.

Allianz says you may request a refund if you are still inside the review window for your state, you have not left on the trip, and you have not filed a claim.

The company cites at least 15 days from purchase, and notes some states allow longer. That is Allianz’s published consumer rule, not a promise that every issuer will refund on the same clock.

Have ready:

The charge date and amount
The Marriott confirmation number
The Allianz policy number from email
The last four digits of the card

Canceling the hotel stay does not always cancel the insurance on the same day. Ask Allianz whether the plan ends when the reservation is canceled.

If Allianz will not refund and you never authorized the product, file with your card issuer. Keep screenshots of the statement line, the booking page, and any Allianz reply.

Do not call a “refund desk” that phones you first. Use allianztravelinsurance.com and the number on the back of your card.

What the Plan Usually Covers, in Plain Terms

Marriott says Allianz plans offered to its guests often include trip cancellation, trip interruption, emergency medical and dental, baggage coverage, and 24-hour assistance. Exact benefits depend on the plan and your state. Read your certificate. A checkout box is not the full contract.

Assistance hotlines on Allianz pages are separate from billing questions. For help during a trip, Allianz lists 1-800-654-1908 in the U.S., Canada, Puerto Rico, and the U.S. Virgin Islands, and 1-804-281-5700 collect from other locations. That is for travel problems, not for “what is this charge.”

How to Avoid a Surprise AGASERVICECO Line Next Time

A few habits keep the insurance line from sneaking onto the card.

Read the Marriott payment page for travel protection before you tap Pay.
Uncheck optional coverage if you already have trip insurance through a card or annual plan.
Save the Allianz confirmation with the hotel confirmation.
Turn on card alerts for every posted charge.
On a corporate card, ask who booked the rooms that week.

Some premium cards include trip-cancellation benefits. Adding Allianz on top can be extra coverage, or it can be a duplicate you do not need. Compare the card guide with the Allianz certificate if you already have protection.

FAQs About AGASERVICECO MAR TT Charge on Credit Card

Q. What is an AGASERVICECO MAR TT charge on a credit card?

A. It is usually a billing name for AGA Service Company, which Allianz says is Allianz Partners. The charge often is trip protection added during a Marriott booking. Confirm it with your Marriott receipt and an Allianz email. “MAR TT” is commonly read as the Marriott travel-protection path, but Allianz does not publish a letter-by-letter decoder for those two codes.

Q. Is AGA Service Company the same as Allianz?

A. For this charge, treat them as the same billing family. Allianz’s purchase agreement says Allianz Partners is a mark of AGA Service Company doing business as Allianz Partners or its affiliates, and that AGA Service Company administers Allianz Travel Insurance plans for U.S. residents. The statement prints the legal billing name, not the brand on the checkout box.

Q. How do I get a refund if I did not want the insurance?

A. Search for the Allianz confirmation, then cancel through Allianz’s online plan tools or the consumer numbers Allianz publishes, such as 1-866-884-3556. Allianz says a refund is generally available for at least 15 days from purchase, depending on your state, if you have not departed and have not filed a claim. If that window has closed and you never authorized the plan, contact your card issuer.

Q. Should I dispute AGASERVICECO MAR TT with my bank first?

A. If you find a matching Allianz policy you clicked to buy, call Allianz first. That is faster for a review-period cancel. If you have no booking, no email, and no household explanation, call the number on your card the same day and report an unrecognized charge. You can do both if the facts stay unclear.

Conclusion

An AGASERVICECO MAR TT charge on a credit card is usually Allianz trip protection billed by AGA Service Company after a Marriott-style checkout. The hotel name drops off because the insurer, not the front desk, ran the card for the plan.

Match the date and amount to your reservation and Allianz email. Cancel inside Allianz’s review window if you did not want the coverage. If nothing in your travel records fits, treat the line as unrecognized and call your card issuer.

Disclaimer

This article is for general information only. It is not insurance, financial, or legal advice. Plan benefits, cancel windows, and refund rules vary by state, product, and purchase date. Statement descriptors and phone menus can change. Verify any charge with your Allianz confirmation, Marriott reservation, and card issuer. Do not rely on unofficial websites that invent prices, policy numbers, or refund promises.