Provide the service we pay for

I upgraded to the 5g but there is a problem wit the router or something, I called numerous time and everyone is telling me to do the same resetting steps but nothing different happens, I told them that there could be a problem with the router, they should send out a technician which their agent and I spoke about over the phone but this never happened everytime I called they said they were going to escalate it and someone will call me back but that never happened, I bought the rain for the use of my family but their phones can't connect only my phone. I told their one agant that it's not fair that I'm paying all this money but only one phone can connect, I want some of my money back besides the fact that I sometimes also can't connect properly,he responded let's first sort out the one problem then they can log the money issue. Even when I log a support ticket on the app they never call back, this has been ongoing for over 6 months.