Do humans actually work at MTN?

So, as from from January 2020 I have had service disruption of at least 5 day per month because their billing cycle misses my EFT payments which are made before their invoices close. The issue was apparently resolved on 7 April (reference number ***), but here we are again. This month (May) I have been without service for 8 days now. Despite emails, Facebook messenger and Twitter direct messages I have had no resolution to this issue. The 135 number is useless, there is no person on the other side, and the App is a waste of time. So, if you take my money, and I receive no service, are you not in breach of contract?