Bad customer service

On the 2nd of October 2018 i went to edgars pretoria cbd to pay up and close my edgars account. I was using my bank account to pay off my balance which was the amount of R306, The consultant swiped R300 on my bank card and said it didn't go through but it pretend out receipts. And since i haven't received a bank notification from my bank i also thought it didn't go through. Then i used my sisters account to pay off my account and R306 went through and i closed off my account. Same day when i was still at the store i've checked my bank balance my R300 was gone. I went bank to the consultant they said they will lock the call. I went to the bank to withdraw my bank statement and call edgars finance head office they said i must go sort out my matter with the branch manager. I went bank to the store the branch manager called assist he said i must wait for 3 days they wanna see if the money will return back 2 my bank account or it will go to their bank account, I went to print out my bank statement the money went through to edgars account on the 3rd October 2018 and my account is already paid up and closed. Now i need my R300 back which is just hanging at their store account i'm struggling to get my refund back. They said they will call me after 3 days now it's morethan 5 days. Please help me get my R300 back. When i owe them they used to call me non stop now they owing me they dn't even contact or send any emails about my R300. My name is KMP Ratsoma