False promises and wrong info given to client

I have asked SADV to give me more information regarding my account since mid July and it took them 3 weeks to respond and not even resolve my query, a lady by the name of Rene Ramatlotlo called me and promised me she would call me back the same day with feedback and guess what, she has not called me until today and this morning I get an email telling me that my debit order bounced whereas the details on the report are totally wrong and do not belong to me, I am still waiting for Rene to call me. I am so DISAPPOINTED and ANNOYED with SADV as they make false promises and NEVER keep them.