PICK N PAY PLEASE PAY. MY REFUND!

On the 9th of July I visited Pick n Pay at The Workshop Durban. Wile I was swiping my card for payment the cashier was busy underneath the till looking for a R5 she lost and accidently switched of the till. I had already put my pin and got sms confirmation from my bank that the transaction went through and was only waiting for the till slip. I had to wait almost and hour for the till to switch on and for them to check that the transaction did go through. I was told it did not go through and had to re-swipe my card but 3 days later to my suprise the transaction of R165. 53 was showing twice on my statement. I went back to the store and spoke to a manager by the name of Malcom who promised to sort it out and provide me with a refund once he has spoken to their head office. He asked me to email my bank statement of which I did and till today I have not received my refund. When I went to the store again he told me he sent everything to headoffice and was under the impression I was refunded. He took down my number again and promised to give me a call the following day once he has done a follow up. Till now I have not reveived a call from him. I am very dissapointed with the service I have received from Pick n Pay, even though the transaction was for a small amount but it is still my money and it was not my fault to begin with.