FNB don't give a **** about clients

The service received from FNB is disgusting. I was upgraded to a Premium credit card which I did not request. Contacted the bank immediately and was told it can only be done the next day. I again contacted the bank and was told that division is not available. I again contacted ask requested it be canceled. I was told I can use my current card for 60 days. I don't have to accept the new card. Now every time I use my card it declines. I have asked what the problem is.. I was told a system error. I asked for a manager to contact me, if which I was told manager has been emailed. 4 days later no response. Today I used my card again declined even though I have funds in my account. It seem FNB is in the business of embarrassing clients.