Useless customer support

I have had the worst service from MTN's customer care. It has taken almost a week to get an eSIM and the issue is still unresolved. Emails go unanswered until 10 PM the next day. Calling in is a waste of time as I just get transferred between departments because nobody seems to understand what is happening or capable of doing anything about it. I have been sent numerous qr codes that were all "no longer valid". I have been met with nothing but incompetence, the service has been utterly pathetic.