Vodacom fibre failing to resolve connectivity issue

Vodacom fibre,replaced my Nokia router which was functioning very well without any issues and issued me with a very small and extremely useless router,which cant even cover my whole house.for me to have access I must be very close to it.It only covers two-three of my rooms the rest has no wifi.my bedroom tv doesnt play and worse I had cancelled my extraview bcos I was streaming nicely with my Nokia router which used to cover my whole/entire house.When I ask them to resolve the issue,Im told to buy an extender at my own cost,while Im paying every month.Im so sick of vodacom fibre and I cant wait for my contract to expire.Complain department is as useless as the rest of them which is very surprising.vodacom fibre is selling lies and are ****ming people off their hard earned money by making empty promises.even the technician who came to replace my router did mention to say vodacom is forcing them to install those useless routers. DO NOT FALL FOR VODACOM FIBRE biggest ****mers.