Unsatisfied client

My account has been frozen for almost 3 months and every time I contact FNB, they not giving me any proper feedback. They keep on saying the matter has been escalated and the person handling my case will contact me and then they go all quiet......they don't even respond to emails now. I am super frustrated to say the least as this has been a huge inconvenience on my side.

Can they please unfreeze my account already