FNB extreme deterioration of customer service

FNB customer service has deteriorated dramatically. Awaiting a response for FNB to fix the error of deleting my credit card since 15 July. Ive spent over 5 hours on calls with no resolution. I've received promises from 3 staff members that they have actioned the resolution, no resolution. I am a private banking customer and don't receive service from private banking either. I asked to speak to a manager, you cant be transferred they only receive messages. No call back and no resolution