Absa Bank....very bad.

I have had an investment account with Absa for more than 30 years. I am in Zambia at the moment and went South in January. I discovered a hold on my account as I could not get money out of the account. I immediately started sending emails to Absa and yesterday once again( for the 2nd time) they declared the matter closed. A Mr Van Zyl let me know that he spoke to Nomvela who handled the case at first and there was a warrant against my name.....Nomvela did send me a warrant, not in my name or anything I knew about. I contacted the lawyer stated on the warranty and he assured me that there is a mistake at Absa because I am not involved in his case, It seems Mr Vanv Zyl or Nomvela does not understand this as they keep on saying the matter is solved and the case is closed. In the meantime, I still have no access to my money.