System issues now I have to pay

During the month of February I received 2 SMS's indicating my data was running low. Due to this, I checked my data balance using *111# each time before I used data, eg. Facebook, browser or whatsapp. It always indicated I still have data left, so I didn't purchase any bundles to carry me over for the month.<br> <br> Now I receive a bill charging me out of bundle data rates! Thus I now have to pay due to Vodacom's systems not functioning the way they should, which would've allowed me proper data and account management (like it is supposed to). Not only this, I have been having problems with people trying to phone me and when I answer, they cannot hear me and I cannot hear them... it's just a blank call.<br> <br> I called 111 from my phone today (14/03/2015) at 13:21 and tried to resolve the matter, but the poor consultant at the other end was also not able to assist me.<br> <br> So not only is this the WORST service I have ever received from Vodacom, while I have been a loyal client with them for years, I now have to pay extra as well!! Totally unacceptable! I have requested to be moved to prepaid from 1 April 2015, and this has been actioned. I will never take out a contract with Vodacom again.