I have Credit One Bank credit card what will happen if I don't activate my new credit card?

As you do not activate you new credit card you won’t be able to use all benefits of credit card for purchases or pay bills. You should know if you do not activate your Credit One Bank credit card within 14 days after you have got credit card your account will be closed in no time.

Can I activate my new Credit One Bank credit card online?

Due security issues we ask our client to call us the toll-free activation number which one you will find on yours credit bank credit card during next one 14 days period after you have received that credit card

Ledger Nano S - The secure hardware wallet