Makro has not refunded

I bought a hob + oven online in May 2020. Only the oven was delivered. After many calls and no resolution, I eventually gave Makro the deadline of June 27 (6 weeks after the purchase was made), because there was a tenant moving in on the day and the stove had to be fully functional. Still nothing was delivered, and I had to run around all over town looking for a stove, which I then bought from Checkers, and called Makro to say they must cancel the order and sent them an email asking them to cancel the order and process a refund. The stove was delivered on July 01, and I did not accept the delivery because I had cancelled the order. I called many times, emailed as many times asking for Makro to refund my money, and it has been 9 weeks now, no refund and all I get is promises that my query is being escalated. What also makes this even harder is that Makro doesn't even deal with these queries, they have a Call Centre that is outsourced so you call and email and you lose your temper, but you just dealing with an Agent who is not even equipped to deal or resolve your query (the only thing they can tell you is that your query has been escalated). I was grossly inconvenienced by this conduct from Makro, when I had to source the stove when they failed to deliver it on tome. It was stated on their website that it takes 10 working days to deliver. I also have been calling and emailing asking for my money back since June 27, and nothing has been. I don't know what else to do. Perhaps Makro can just come out and tell me what the hell is going on.