Very bad service

My home wifi router hasn't been connecting for 3 weeks now and network slow and not working on other devices, I have called vodacom many times, made follow ups and visited their branch in menlyn Pretoria and still could not get assistance, they told me there are no loan routers available in order for them to investigate the issue on this one and gave it back to me, mind you I'm paying for the services that I did not get for three weeks now