Can’t access my own funds

Due to an error by who was supposed to be my personal banker, he cancelled the incorrect credit card. CCD couriers didn’t deliver, and my requests to have the card send to Cresta was ignored and I never received a card. FNB has in the last week decided to freeze my credit card account, and I can’t access my funds available, which ultimately left me not having any access with funds, and I couldn’t get my meds to treat a potential life threatening condition. All attempts to get this resolved through RBJacobs and the credit card dispute department were unsuccessful. I received voice mails with no recorded messages, and requests to email me feedback on how to get the matter resolved is just ignored. I just need access to my available funds. Please help me. Maybe Fnb should start spending money on customer service instead of innovation!!!!