MTN online poor service and Bad network coverage

I ordered a wifi LTE uncapped sim card via MTN online and the following day a person called from mtn regarding the order and we finalized it and I was told it will arrive within 10 days and it is now over two weeks and I still haven't gotten it. I followed up with an email to ask what is the hold up and they requested purchase info and said they will come back to me but it's been a week no response I even went to MTN store to get assistance n I was told I can only get help online by writing an email of that part failed big time. To add on my company is using MTN for data and unlimited calls but we always get outages for UpTo 4 days with no network whatsoever and prevents one to complete their work now they considering switching to Vodacom. I logged a ticket regarding the outage issue n I was told a technician will attend it in 3 days and still no response and outage still occurs. All this just destroyed my trust for a big company such as MTN and was considering buying buy a phone from them but I think I will be disappointed again. I wouldn't recommend it to anyone because it's costly but doesn't even deliver on small things. Don't waste your time and money buying online from MTN they don't really care about the service we as customers who supports them deserve. Big NO!!!