Failing to refund

On 10/12/2018 I made an online purchase for an Apple iPhone 6S. An amount of R5999 was deposited by EFT on that date. A week later on 17/12 I received a call from you telling me that you ere out of stock of the phone I ordered and that you would be refunding me. That was 2 weeks ago. I don't have a phone on which to contact you but I managed to talk to someone in the chat room who agreed to pass on my complaint to Head Office. I received an email on 31/12 quoting reference number 742384 and stating that someone will be contacting me. I have heard nothing from you. I did iterate that I do not have a phone and the only way to contact me was by email . Please do so as I desperately need this refund so that I can purchase an iPhone elsewhere.