Funds disappearing out of bank account.

In mid December I had R2500 deposited into my account from work that I had completed. Within a day the funds were depleted by somebody using my account in Umhlanga Pick n Pay on a few occasions during the day. I was at home in Johannesburg with my card in my wallet. I have sent emails, phoned and nobody has bothered to come back to me by email or contacted me regarding the recovery of my funds. I find this absolutely shocking. Tyme bank appears to have people working for them that are absolutely ***********. I have read many reports of funds disappearing out of their accounts. Is this all inside jobs or what are they doing.