FNB credit card I cannot use.

I am so tired of FNB , even though I am a private wealth client and of course for this privilage it costs me R499 a month lately , it used to be free if you had a certain balance in your account. I am trying to do an online payment with my credit card for a transaction that I use for making a living and for the fourth day now I still cant do the transaction , because the ***** department flag is as potential *****. Everytime I call , that is if I dont get cut off when holding on for anything from 20 to 40 min per call , they only say it has been sent to management , this is the fourth day that I have heard nothing , I message my private banker daily and she only says she will get back to me or will phone them and ask what is going on , but this does not sort out my problem , I am losing money every single day because I cannot use my credit card to fund my online business the way it is intended to work so I have a useless credit card. Please rethink if you would ever want to have an FNB account because they really have to many problems and no solutions and no one can help you.