Problems connecting my FNB card to my profile

FNB upgraded my card to a gold credit card, when I went in to collect the gold credit card they cut up my classic card. I upgraded my phone and the FNB banking app wouldn't work so I went into the Brooklyn Branch to sort the issue out, as I was going in to sort out other issues. They connected my card (supposedly) and got my app working. Last night I go to load data on to my phone with the app and it tells me my limit for the day has been reached, check the limit is R5000 a day according to the app. I download limited data. I try with cellphone banking this morning and I need to fill in my last 4 digits in and my pin, my cellphone banking says they are not correct, which I know are. I can't load more then 500mb at a time with the excess banking fees (for each transaction) plus the fact I can't load a decent amount of data bc they cannot connect a card they issued to my profile correctly.