Bad service at Standard Bank and very ***********

I have cleared my cheque account to a 0 balance. Standard bank still add charges for overdraft. I tild them to close the acc. They didnt. I had a policy with them for 2 personal loans which paid both up because of a dreadful disease. They still add charges. I have phoned and went to the bank several times. Nothing was done. The last time I went to Standard Bank in Somerset West. Spoke to Jan van Staden who is a team leader. Still no feedback. I want this matter settled asap.please