What do you all do with the corporate credit cards once you leave the company? Do you call The cc company and cancel the card? Just return the card to the business admin and they take care of it?
I think it auto cancels you need to cut it and throw away . It should be mentioned in your resignation acceptance email from your company
Shred them
Keep it as a souvenir if you want. It'll be deactivated anyway.
Use it
It will get canceled, no need to worry