I WILL NEVER PAY MR DELIVERY WITH MY CARD AGAIN!!!

I am a regular customer of Mr Delivery.I like their bigger variety of affiliate restaurants and the fact that they are available at my area of work and home.I am however very angry at the service they have given me in the last few weeks.I was billed twice for a eat in order on the 30/10/2018.I was immediately advised that I would get a refund for R426.40.Till this day...16 days into the new month ,I am still waiting.Its annoying...I would really prefer for them to admit that they are ******* so I can stop expecting my money back....I have been using my debit card with them...I CAN NO LONGER TRUST MR DELIVERY WITH MY MONEY!!!!!