Telkom Mobile Router Data Usage

I wish to complain about the contract that I recently signed up with Telkom for a mobile WIFI router with 10GB a month. I am complaining because I am not happy with the data usage and the contract. The contract is still within 30 days and as per consumer act I am not happy and have the right to cancel my contract with immediate effect. When I first learned of this problem, I contacted Telkom on the 06/12/2018 at 11:30am and spoke to Tembi Molefe I was not happy with the feedback received and was promised she would send me an email with the data usage which I have not received. I believe that this response is unfair because I have been tracking the usage and this does not make any sense. Its shows that I used 6GB of data over a space of 6 days, this is impossible as I do not stream, I have only been using my mobile WIFI for a few hours in the evenings for watsapp and a bit of social media. My sister also took out the same contract as me and when I told her about whats happening with my data she checked her data usage and it showed that she had used 5GB however she did not use her router since the 1st Decemeber therefore how can her data be used up. I would like a written confirmation that the contract is cancelled. If I do not hear from Telkom within 2 working days I will file a complaint with the Ombudsman and consider my legal alternatives as this is Theft.

Alisha Pillay