Failing to honour the agreement

I have signed up for the new contract of the LTE router with Telkom mobile online and my router was delivered on the 10-02-2015 and was promised that it will be ricard and it will be working by Thursday the 12th. On Friday the router is still not working i decided to go to their store in Southgate i was told they cant help as it was not their sale but Sell Direct i must contact them which is their third party. They did not even care when i told them i'm cancelling this contract. As ****ed as i was i took the router back with me and decided to give them time i called Telkom mobile again today and i was on the phone for 35minutes because when i phone sell direct the phone just rings on its own with no answer. The agent i spoke to was Mandy Makhanya of which she did not help me with anything she even refused for me to speak to her manager. All i want is for them collect this router as i don't want it anymore because of their poor service and i hope that they not going to debit my account for such **** service.