MTN - Poor service!

I urgently needed a home internet package so I approached MTN because I was an existing customer with them. I was interested in a 5G package they was offering. They checked on the system and confirmed that we had 5G coverage in our area. So I purchase the 5G router from them. They told me it would be plug and play with immediate internet access. More than a week later I still had no internet access and they could not get the router to function. The router akso never picked up a 5G signal because i subsequently found out that we do NOT have 5G coverage in our area. I cancelled the deal and they agreed to refund me. This was almost 2 months ago and I am still waiting for my refund. This is pathetic service to say the least.