failure in service at every possible point

I order a tv and a clothes rack from takealot. delivery did not take place at the agreed times and upon phoning in it was rescheduled and delivered 2 hours later. The tv did not turn on and the clothes rack did not assemble. I escalated the matter and I was contacted to schedule delivery for the tv. when I called takealot to find out about the clothing rack I was transferred onto 4 agents who kept trying to transfer me to the returns team. I was then put on hold for 10 minutes only to be told that the returns team is busy. I then engaged with someone who put me through to a manager. I was promised exchange of the tv on the day and return of the rack on Monday. The manager promised she would closely monitor my transaction. tv was replaced and was in good order. by Monday no courier arrived at the promised times. I contacted takealot and I was promised that someone would be calling me to reschedule. no one did so. I once again had to escalate the issue to the same manager who said on her system it was registered that the rack was picked up. on my profile it says that pick up still needs to be scheduled. I am extremely frustrated could someone please own this once and for all.