Paid but not given food

Appalling and demeaning to highest level. Ordered food for deliver, while paying using my debit card their speed point went off. I was told to pay in cash the amount of R148 to get my order. I checked my back account and found that the transaction went through. I showed the delivery guy but he said as long as the machine did not give out slip he cannot give me what I ordered. He called the store manager (Braamfontein Steers) for me to talk to, which I explained but his attitude was very bad. He refused to give me the order and and told me that my money will be reversed in 7 working days. So paid for food I did not receive, even though the fault lies with their system. I have proof that I paid but still he insisted that he cannot give me the order and that I either pay again in cash or wait for 7 working days to have my cash reversed. It is not for the fist time I got served bad service by this store. Some time last year one of their delivery guys brought my order without change i requested to be brought. he took my cash and promised to bring change back of which it never happened. i have been a regular customer to this store for a long time, at times placing more than one order a day. I'm still waiting for the reversal till today. i will not let it go down unnoticed, will fight for my cash to the end and will never buy there again. I might be a drop in an ocean but drop will affect others in due time. I wish I never ordered there, ever.