very, very, very, very, poor service

I purchase on line on 29/04/2019 a HP PC & Samsung Screen, made an immediate payment from my Capitec account, and received mail that I can collect from Centurion store on 2019/05/09. When I arrive at Centurion on 2019/05/11, I was notified they had no stock, by Rosina. I cancelled immediately with Rosina, who assured me she will do the cancellation from her side. On Tuesday 2019/05/14 I phoned her, she once again assured me I will receive refund within 07-10 working days. On Friday 2018/05/24 I phoned again, spoke to Rosina once again, was informed that refund will be paid soon. On Monday 2019/05/27 I couldn't get hold of Rosina, spoke to a gentleman, who took all me details, promise to follow up, and revert back to me, and of course, no feed back. On Tuesday 2019/05/28, I discovered e-mail from online, reply with all documents to Ashleigh Panday. On Wednesday 2019/05/28, I received reply from Asleigh proof of payment must be in PDF and from the bank, which was done the same day @ 15:31. I send it three times to make sure she received it. I send follow up mails to her on Thursday 2019/05/30, with no reply of course. On Friday 2019/05/31 I phoned 086- ********** , spoke to a lady, and after a while she said they were still busy with it. Few minutes later, I received the same mail from Ashleigh, she is still awaiting proof of payment, after I send it 3 times already. I send it for the 4th time. Then finally I did receive feedback from Ashleigh all documents was send through, and it will take another 5-7 working days. Never ever buy something from Makro online.