R1500.00 payment missing from my account

Payment was the 11 Dec 2015 at Edgars Active Baywest Mall but I received a call a few days later from your accounts department stating they did not receive this payment. The manager at Edgars Active, Cindy did state that they did balance at the end of the day but she said that they do not have vision access to my account & she must follow up with someone & she will get back to me. She did not get back to me!!! I had to go back to the store where she misplaced all copies of proof of payment & then asked me to take this up with Edgars Clothing & speak to Kim as there's nothing further she can do to assist. Kim at Edgars clothing tried to follow up but all she could tell me was that the transaction has not gone through & can I go get another bank statement? Why when I already produced a bank statement. To add insult to injury , I was searched by Edgars Active security on the way out because I went to the manager's office. Is this normal procedure? I have been from pillar to post, driven 200km (5 visits to Edgars) yes that's correct 200km! I did inform all Managers at Edgars that the acc no on the eft voucher does not match my acc no. Why cant they fix thisproblem?