Credit card upgrade ****ed my old one while waiting for the new one

FNB. I upgraded my account, which also meant I would get a new credit card. This takes a week, but little did I know my existing card would stop working while waiting for the new one. I have NUMEROUS payments per month that go off my credit card. All these have failed now with insufficient funds, because I cannot load money onto the new card, as the new one is already on the system. 12 transactions have failed so far. Who's going to pay for those failed transactions? I am disgusted by this, and trying to get this sorted over the phone has yielded no results. I still haven't gotten the new card, which hopefully comes today. But yeah, if you are thinking of upgrading your account and will get a new credit card, keep in mind that you'll be without a working credit card for a week at least.