Cancel my contract or refund me my data!!!

Firstly I am a very unhappy telkom client. Both your websites and app are not user friendly because I’ve been try to log a complaint regarding the data usage on my router. After several attempts and both website and app not being of any use I have resorted to Hello Peter. I have not made use of my router this month to see if my suspicions were correct of my data just disappearing without me even touching my router. Today I logged on to the app to find that 19.9 GB has been used. And when I said this router has never been touched the past 4 days I mean it. I am very upset because how do I even begin to use so much data in just 3 and a half days? Let alone have my data disappear without even using it?? What am I paying for??Sort this issue out and I want my data refunded for the past three months or just cancel my damn contract because this just ridiculous.