We have collected answers to the most frequently asked questions for you to refer to. But if you do not find what you are looking for here, or need additional information, do not hesitate to contact us or give us a call at 877-866-0202.


How do I activate a new O2 Debit Card? You can activate a new card by calling the toll-free activation number on the card sticker by using the phone on file with Old Second.

What are the card benefits? You can review the benefits guides below:

If you are still using an O2 Discover® Debit Card, refer to the following guides: Discover® Debit Consumer Guide PDF and Discover® Debit Business Guide PDF. Click here to report a merchant that does not accept Discover.

I lost my card or my card information was compromised. What should I do? Please immediately contact 1-877-866-0202, available 24 hours a day.