Terrible customer service!

I order pants on the app, they arrived but they were the wrong size, logged an exchange for it to be delivered on specific dates , they ignored that and allegedly delivered on the day i was not even there, the item was marked delivered but they never called me to deliver to me, never authorized the gate for that, so when i got back home there was no item delivered, called your support they said they will investigate and get back, nothing ever happened, called multiple times everytime told the same story we will investigate and feedback. no feedback was ever done. That time i still had the original item they're supposed to collect when they deliver the exchange. I logged another call for exchange, the takealot guy came to collect the item without the exchange i asked for. Eventually the original item arrived back to your warehouse but my exchange was never delivered to me. called again and tickets were logged with the promise that the item will be delivered still nothing and no feedback. i spoke to so many agents everytime is we will escalate and feedback and ***ol. i asked for my refund last week tuesday and the agent said she is processing it, nothing happened again, i called yesterday the other gaent said no refund was logged, she will escalate and get back to me, again still nothing. I'm sick and tired of your terrible customer service. Fix this b.s! order numbers:***7,***4..ticket references #***8 , #***0, #***2,#***5,#***8