Print What should I do if I notice a transaction on my account that I did not authorize? If you notice a transaction that you did not authorize, call 1-800-479-7928 so a Member Service Representative can assist you in researching the transaction and filing dispute paperwork if necessary. Related Items How to Remove Credit Report Errors in Three Steps What should I do if I’ve given someone my login information for RCU online banking? I think I am a victim of a scam. What should I do now? How can I get a copy of my credit report? How can I report a suspicious email? How do I know if a check is real?