Poor Vodacom Fibre Router

Good day to you I would like to make a complaint about Vodacom fibre, they supp**** me with a router that has very poor signal coverage. We live in a townhouse and the signal is only strong in the lounge where the device sits. I requested for the contract to be canceled 5 days after the router was delivered (this includes the long weekend) and was advised that I would have to pay over R 4000 cancelation fee. I was advised by one of their consultants that they have had many complaints about the router supp****. They have not offered to supply me with a better router. My neighbor has a MWeb device which provides perfect coverage. I would appreciate if someone from Vodacom could contact me in order to find a solution to this mess. Many thanks Craig Jewell.