Poor service and lack of feedback

I contacted Chubb security and spoke to Khosi last month after they prematurely debited my account. As per the contract agreement the 1st debit order was suppose to be on the 25th November 2015, However i was debited on the 2nd November 2015, which is a breach of Contract agreement. Khosi advised will request a copy of the agreement to verify and come back to me which did not happen. The funds were supposed to be reversed which was not. I left the amount and hoped that they will fix the error and yet again still debited me on the 1st December 2015 and left my account in access AGAIN. The POOR administration of the account and the lack of ownership from Khosi makes a company look bad. So far i have not experienced any problem with the security guys on the field but the administration side need a serious turn over especially Khosi. She even has the nerve to tell me that she contacted me and due to being uncontactable she did not continue with the query. How pathetic. I am expecting this to be resolved by close of business today or i will log a complaint with the SASA (Ombudsman). It is not only the negative balance left in my account. This might affect me when applying for credit.