Data not capped at 2 Gigs as requested Jun2015

Acc no ***9-3 Cellphone/Data card no***<br> Vodacom phoned me on 7 Dec at 15:07 on no *** informing me that my acc for Dec is 1800+ and that I must sort it out with Makro Vodacom, where my contract was signed.<br> Drove 78 km to Makro and back only to be told that they can't help me I must take it up with Vodacom.<br> Contract signed and I insisted that my 2gig data must be capped at 2 gig. The contract states that I may receive emails warning me of my usage and service will be suspended, when I've reached my limit. I also received a letter from Vodacom on 3 June 15 confirming that I will receive emails pertaining to my data usage.<br> I've also sent emails to customer care at Vodacom 2 June 15 capping my 2 gigs. I eventually asked hellopeter, dated 6 June 15 to help and Vodacom acknowledged that the matter has been resolved. My acc has always been R99 from June 15 to Nov 15. I never received emails informing me of my data limits or service suspended. Contract contact no according to contract is ***<br> Kindly advise why my the data was not pegged at 2gigs and will I be responsible for the high acc. I feel I did my best to have it capped at 2 gig. Credit Limit?