Pay my money back please

Debonairs Pizza Turfloop University Road and Yumbi don't wanna refund my money. I ordered a pizza online and they deducted the money twice and I only received a single order. I've been going to the restaurant and they're giving me run arounds telling to go to my bank and call Yumbi and still nothing. It's been more than three weeks now. Even the teller at the bank told me that I'm not the first person to complain, to my surprise I see a lot of clients are complaining about the two establishments here on hellopeter.com. I need my money