Debited x 6 times on my card

Showmax debited me 6 times if R150 each and still no refund. Authorize one payment and 6 went through. Showmax does have a contact line telephonically and give whatsapp number where the consultant first said within 24 to 48 hrs and now the next follow up they said there is no time and they investigating, my bank statements were sent. On Friday they said someone will phone me, no one did. Still out of pocket R900 and to make it laughable, showmax was not put on. I do not want Showmax I just want my money, this is theft. I authorized 1 payment not 6. No one cares at showmax