MTN Dysfunctional Customer Care department; Billing problems

I wanted to submit a detailed complaint, but judging from the number of submissions, the low average rating and the lack of response from MTN, I guess this will just be a fruitless exercise. In short though, MTN has no concept of customer service. Their Customer Don't Care department is simply dysfunctional. The new billing system they implemented in Apr/May is a mess. The customer portal doesn't contain much and I haven't been able to get a correct invoice since! And despite requesting numerous times, I still have not received my billing documents for August 2020. And to add insult to injury, my services have now been suspended. Time to terminate contract and move on.