MTN just do their own thing, ***** the customer.

I wonder if MTN know what they are doing because I received the following messages this week (actual SMS's reproduced with date and time):

Tuesday 29 October 2019, 09H41 - Yello, this is a reminder to pay R***.xx to stay connected. If no payment is received, your services will be suspended in 2 days. You can pay........ Thanks for the reminder MTN, I had forgotten to pay, I made payment very early in the morning on Wednesday 30 October 2019. Wednesday, 30 October 2019, 04H17 - (From MTN) Yello, we have received notification of the payment made on your MTN account on the amount of R***.xx, Kind regards MTN. Take note that this payment was made WITHIN the 2 day time frame granted by MTN. Thursday, 31 October 2019,09H07 - Yello, We have had to suspend your ability to make outgoing calls due to NON-PAYMENT of your MTN account. Please pay R***.xx with mymtn app or via ABSA, FNB or STD Bank Using your account no. or cellphone as reference for payment. How does a multinational company operate when they give you 2 days to make payment, then acknowledge your payment made within 24 hours and then 24 hours later, suspend your service? Please don't blame your IT systems for this mess as the IT system was programmed by a human somewhere.