Is CU1 MASTERCARD fraud?

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The Guide to Understanding Why You Were Charged By “CU1 MASTERCARD” and What To Do About It (creditunion1.org)
Bella Khan, Subscription Cancellation Expert
Published February 1, 2026
Last updated February 1, 2026
1 min read

What is "CU1 MASTERCARD"?

  • CU1: This typically indicates the specific merchant or vendor where the transaction took place.
  • MASTERCARD: This shows that the payment was made using a Mastercard, which is one of the major credit and debit card networks.

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Why do people get charges like this from Credit Union 1?

If I see this charge, what should I do?

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Cancellation Activity

melody J. from Corpus Christi, United States cancelled Paddle.

Kami T. from Melbourne, United States cancelled IL MAKIAGE.

melody J. from Corpus Christi, United States cancelled Netflix.

Patricia K. from Macedonia, United States cancelled SiriusXM.

Betzaida R. from San Juan, Puerto Rico cancelled myiq.

  1. 01 What is CU1 MASTERCARD ?
  2. 02 Verify With Receipt
  3. 03 Why do people get charges like this from Credit Union 1 ?
  4. 04 Credit Union 1 Customer Service Info
  5. 05 Disclaimer
  6. 06 What other ways do charges from Credit Union 1 show up?
  7. 07 The Easiest Way to Get a Credit Union 1 Refund
  8. 08 Comments

Cancellation Activity

melody J. from Corpus Christi, United States cancelled Paddle.

Kami T. from Melbourne, United States cancelled IL MAKIAGE.

melody J. from Corpus Christi, United States cancelled Netflix.

Patricia K. from Macedonia, United States cancelled SiriusXM.

Betzaida R. from San Juan, Puerto Rico cancelled myiq.

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