Quick to disconnect but terrible at reconnecting

I got a notice that the account was overdue, this was due to my Mom normally paying for my account and she forgot, I then got disconnected on the morning of the 8th of March 2015, I duly paid the outstanding balance at 12:36 on the 8th of March from ABSA may I add, of which MTN also banks with ABSA. Still by today the 9th of March 2015 I have not been reconnected, this after sending an email with proof of Payment to [Email Removed] following this I receive an email that my email will be responded to in 8 HOURS! Well behold this never happened and I spent roughly 3 hours trying to get in touch with someone at the call center, no one ever answered, I even stayed on the line for an hour whilst in traffic on my way home, only to get disconnected at exactly 17:00 and then I called back, this is what I hear \Sorry our call centre is closed operating hours are from 08:00 till 17:00"well well what were the people doing between 08:00 and 17:00 because I tried all day!!! To note I will be providing a calculation to the accounts department for a short payment I will make due to MTN's lack of performance! I expect this to be resolved! You cannot take money and then do nothing!"""