Funds deducted but order never went through

On the 15th I did a purchase of two tyres online ,the first payment was supposed be R726.95 when I went to pay I received a red error message and got sent back to the payment page to repay but I never ,when I went to the bank account to the bank account that I was using I see R726.95 was deducted from my standard bank account ,when I tried contacting them I spoke to a guy name Saleem osman who said I must just wait the funds should be reversed,at that point on the 15th the transaction was showing outstanding card authorization so I knew it will be reversed when pay just now receives the funds ,today the 18th of December I see that the transaction now says cheque card purchase and pay just now claimed the funds ,when I contacted them again the same agent Saleem says that they can't do nothing they never received the funds and I need to see with my bank ,so what I did was contact my bank and we are opening a dispute against pay just now and if that doesn't do much I'm gonna take it up to the ombudsman and the NCC ,who loses R726.95 and leave it , the bank is clearly saying that as of today pay just now has the funds but they continue to claim that they haven't received it ,I will make sure I receive my refund or pay just now will credit my wallet,I've been using them for years it will be sad to leave them after so many purchases, please try and get to the bottom of this issue...