Incorrect billing

Since inception of the contract with TelkomMobile I have been charged and my account debited by an amount much higher than what I signed up for. Instead of being charged R150 for 2.5Gigs of data I'm being R227.<br> I raised this issue with the LTE Force that was assisting me with the application, immediately. <br> On 05/11/2014 he advised that he had forwarded my query. I haven't hear from them since.<br> <br> On delivery of the device and the SIM card, he also did not give me a copy of the contract and promised that I would receive it shortly. This too never happened.<br> <br> I would like someone at Telkommobile look into this and advise as to what actually needs to happen to resolve this.