A deduction was done without my authorization

Good day

I did a purchase on Saturday at the Southgate Debonair Branch and I made a payment of R185 which went off from my account. This morning I received an sms at 05:18 with the same purchase done from my card for R185. I want to know whos fault is this between Capitec and Debonair and how on earth is it possible that a purchase was made from my card without me approving it or even being at the shop to swop it. Southgate only opens at 09:00 so its impossible for me to have bought pizza that time of the morning. I want my funds reversed back into my account today still as Capitec should have been secured. I will be opening up a ********** case against the Southgate Branch and if my bank cant resolve this matter and investigate then I will move to another bank.