Frozen account

December my account was put on hold because I sold my car and the money was deposited into my account and capitec said they suspect money laundering and requested that I send them proof I did and got a case number *** after going back and forth with them they finally opened my account. The problem is capitec requested FNB to freeze my account as well and now FNB is requesting capitec to write them an email to sort this out its May now and nothing is being done resulting to my contact being terminated with FNB and I had money in my FNB account I have been going back and forth from FNB and Capitec with no help I'm pregnant and can't move around as much anymore I'm tired I need help because I did nothing wrong. What must I do now?