Unknown purchase being done on my account

Good afternoon,

I like to complain about Capitec bank. There was a purchase made on my account on the 25th of December by drivethings of about R18252. I called their customer service line for assistance they pick up the phone and they put me on mute for over 30 minutes and I could hear them talking on the other side of the line until they drop my call. I contacted their whtsapp line and they said they can't assist me coz I'm not the account holder and it's my account. They said I should call them again in 24 hours but the did the same with their line, put me on mute until the drop the phone. Today the 08/01/2022 at 18:15 the same purchase is being made on my account and their customer service is doing the same. A purchase of R188.44 is being made. How can this happen in a financial institution. Our money is supposed to be safe in our accounts. This is very unprofessional. I want all my money back.