It feels like I have been ****med

I got a cyclone router 5 days a go , it is so not giving me joy. The guy working at Telkom is so clueless. 3 days after I had it I went to the store to complain they told me there is nothing the can do I assked about alternative they could have.for.me and also if they can change it and give me another brand as I thing cyclone has an issue.okay fine they told me that wont be possible unless i cancel the contract that was fine with me since there is no connection later or half An hour the manager came with a very lame excuse of reason on why I can cancel the correct as I have used more that 500 mbps mind due it was not working how can I and in three days of trying to connect 3 phone and TV.

I want assistance with this router and would even offer it to my worst enemy, birchacres Telkom service is bad they are so clueless in what they are selling and how it works I'm.so.frustrated.