Mobile Router Connection always not available

Hello, i am very disappointed in Telkom service, i am on a 24 months contract with them bought a mobile Router that is always failing to connect. I went to Telkom Rosebank to lay a complaint, the chick who assisted told me everything is fine now i went home tried to connect on my laptop boom nothing... its really not fair cause u guys are debiting money every month and im not even using the router because its not connecting... i have to buy data bundles everything week so that i can logon my PC... Telkom nothing. its just at home. the other time i went to go cancel my contact because there's no point to be paying for something that u cant even use, they told me to cancel i need to pay R1000 something to cancel. it is really not fair im not canceling because i want to im canceling because i cant be paying for something that im not using... please help. this is just not on R230 every month i could be doing something better with that money. i am not happy with Telkom dont even think i will ever use it again.