HiFi Corp- Very Bad Service once they have your money

Good Day, I purchased a Linx Alaska work desk on-line on 16 August 2019. I paid R1599.00. The next day I received a call where I was told that they did not have stock and that they would refund me within 7 days. I wanted to know why I had to wait 7 days for a refund when the error was made on their side because the online purchase should not have taken place. I explained that the least they could do was to process the refund quicker. Apologies followed but no promise of a quicker refund. I have tried calling their numbers and no-one answers, went on the chat line twice and each time the call centre individual who responded read from a script which ended with " someone would respond with 48 hours to my question regarding the progress of my refund". I am all for the ease with which one can now purchase good online and errors do happen, but the problem is the company not being responsive and rectifying the error ASAP. They instead are hard to contact and those who are on the chat line read a script which does not resolve the matter. To date after all the promises of a call from them within 48hours, I have no further calls, I have not received my refund and it is now more than 7 days. I am not able to get hold of anyone to give me an answer as to where my money is. I will not recommend buying from HiFi corp . Once they have your money as in this instance they go quiet. Mrs P V Flanagan ***