Contact Us

Call Toll Free 866.360.5370

Our Member Relations Center is available for you 7 days a week to open accounts, transfer funds, make payments, or inquire about your account - either over the phone or through email!

Member Relations Center Hours:

  • Monday - Friday:  7:30 am - 7:00 pm
  • Saturday:  7:30 am - 5:00 pm
  • Sunday:  10:00 am - 4:00 pm

Report a lost/stolen C1st VISA Debit Card:

  • During C1st business hours, call 866.360.5370
  • After business hours, call 800.383.8000

Report a lost/stolen C1st ATIRAcredit MasterCard:

  • Call 888.428.4721 

Other questions? Email memberservice@c1stcu.com and a representative will assist you.