MTN - do you treat all customers who have been customers for 40 years like this??!!

I have been requesting that my MTN contract statements/invoices be emailed to me monthly since September 2023 and have not received one. This, despite more than six SMS's from MTN over the months informing me that the information has been sent. I have needed to visit an MTN store to request a printed statement. In the midst of all this I received an SMS on 20 June informing me that they are performing a credit check on me - after being a paid up customer for 40 years???!! I then decided to put a debit order in place for my monthly contract payments to obviate any more waste of my time. I went in to their Ballito Junction store, provided the required information, received approval from my bank and then received two SMS's from MTN, first informing me that my MTN authentication was successful and then, about three hours later, that the authentication failed and that I need to go back to the store and chat to an agent. MTN, please can you tell me whether you care about your customers and if you are prepared and able to assist me resolve this situation swiftly.