No response or return of calls

There isn't enough characters for me to state my story so redoing it. Vodacom Repair store Canal Walk. No response or reply from managers when promised they would get back to me regarding money that has to be refunded to me after a consultant at the store did not do his job properly by activating my sim. I have phoned the store and the phone rings FOREVER I eventually left messages. The manager did not return my call and I had to call again. Got hold of the manager and informed her of my problem. She told me that my sim would be activated within 30 minutes and when I collect my phone they will refund me the R63. On the 02/02/16 I went into the store to collect my phone and then spoke to the other manager named Shanaaz and informed her of my problem. She guaranteed me that the money would be paid via EFT into my account. I phoned yesterday and she told me she would phone me back within and hour. I am still waiting. Left a message again this morning. Needles to say the phone just rings and nobody answers the phone in the store. My complaint is not so much the R63 but the lack of contact with customers when promised.