Bad client service MTN

In October 2025, I took out a Homepro wi fi which worked fine. On 19 December I received a phone call for an upgrade on my wi fi and cellphones, which I accepted. Soon after the call my wi fi went off. Ever since I have had no wi fi reception. I have visited the Key West without any solution. I have made various calls to MTN Rewards and MTN coverage without success. Now i am sitting with an MTN router on 3 year contract and nobody at MTN is able to assist me