Contact Us

For inquiries regarding your Mustang Cash Account or to make suggestions for new accepting locations, contact the Mount Ida One Card Service Center:

E-mail  Please include your name, ID # and birth date in your e-mail.


1-888-424-4045  Representatives are available Mon. – Fri., 8 a.m. – 6 p.m. Eastern Time. International callers may call 1.267.327.4699.

For questions/contact information for Sovereign/Santander Bank, click here.