it was not really clear.. it caught me off guard as well. But if you go to
https://www.firstchoicepay.com/ you should be able to login with your existing Payoneer info and it SHOULD show the existing card number there as well as any balance you had.
The Payoneer site itself now lists the new card number they are shipping to me (you too?).
My only question is, and I assume I can, is whether or not I can use my existing Choice Bank issued Mastercard from Payoneer to withdraw from the First Choice Pay account.