Discontinuing my line without my permission whilst paying for it

I am writing today 7 September 2020 to complain about the unsatisfactory service received from MTN

I have a MTN contract with four lines and had experience mostly good service. In March 2020, during the lockdown my account with all four line was disconnected and only managed to be in contact with your customer service in June-July after the lifting from level 5 to level 3 to resolve it. Out of four lines only three have been activated and the other line is still not active. I have been communicating with Customer Care effective from July 2020 regarding this line that is not active until today it is still not resolved I have repeatedly tried to explain to your representatives (MTN customer service) about the inconvenience this has caused but nothing fruitful has emerged – it has now been 39 days trying to resolve the matter, I’ve now had to incur expenses of requesting Uber to drive me to get this matter resolved while exposing myself to the Corona Virus.

I trust this is not the way MTN wishes to business with valued customers – I have been with MTN approximately fifteen (15) years and have never encountered such treatment before. I welcome the opportunity to discuss the matter forward that will lead to the line being active again and the prevention of this situation from reoccurring.