I can't remove my old debit card (Got a new one, can't remove my old one.)

[Vuragado]

Title.

Only reason why I want it removed is in that 1/Blue moon chance that it somehow turns into someone elses card number.

[Whac-A-Mole]

add the new one and make it primary,then try to remove the old one,if it wont let you,then try later or justleave it alone