Overcharge or Misbilling

HI,<br> <br> MTN is Billing me R579 or something like this and they cannot tell me why. When login in it shows the amount that the contract is Total R 314.00 . That i can accept but the other amount i cannot: *** Number: ***. <br> <br> If this is them trying to bill me for The month that i did not have the internet due to them *****ing up BIG TIME, i will surely want to know why and how they get to that amount. Cause i will reverse the debit order again and only pay the R314 manually. This is now starting to become ridiculous <br> <br> Please sort out your **** and get back to me urgently as the Months i did have this i did pay what was expected. <br> <br> Thanks. And phone me if needed. Like in ASAP.