FRUSTRATED, IRATE AND OUT OF PATIENCE

I called Vodacom customer services to cancel my contract in Nonvember 2014, the agent at retentions assured me that it was cancelled as i had passed my maturity date and that i would not be billed again only to find out that i was still debited for December 2014 as well as January 2015. Upon calling the call centre again on the 28/01/2015, i was transferred to another retentions agent by the name of Sbusiso, he advised me that he didnt know why the canecllation did not go through and that the account was still active, he assured me that he would cancel the account and process a refund for me, he promised that he would sms me the reference numbers on *** as i donot use the Vodacom SIM card any longer, guess what??? THAT DID NOT HAPPEN EITHER!!! forcing me to call back and go through the whole scenario with a completely different agent, guess what she [promised me??? that she would log the cases and forward me the reference numbers, this was at about 18:30 last night,,,,YET AGAIN,,,STILL NOTHING. I want this matter resolved immediately as i have done what i needed to as a customer, further, i want to be compensated for the inconvenience as well as call charges to Vodacom.