How do I get my money back

I made an EFT payment to multichoice using the banks preloaded beneficiary account.<br> When Multichoice disconnected my service I went to them with my proof of payment.<br> They couldn't trace the payment so I had to pay again. I then went to the bank who said it had been paid.<br> Since then Multichoice say I haven't paid and the bank just ignore the problem with a stock answer we need to investigate.<br> Well a month has passed and I haven't heard from them.<br> This is very poor service and I am out of pocket.<br> Nice business to do people with - this is not a misquote but think of it - How much interest is the bank making <br> <br>