Customer Care farce

Unfortunately I am unable to rate less than 1. I have been trying to close my late mother's account (which has simply increased monthly) since her death in February 2020. I requested for her number to be converted to prepaid, which I discovered had not happened about a year later. I have been trying since Feb 2020, when she died, to have the account closed, but Customer Care does not apply to MTN. This can probably be seen from their ratings. They don't even have a automated reply saying that your business is important to them and they will get back to you. Not sure if they show an interest here ...