Rain is the worse network provider

I have been complaining about just almost over a month now about their signal and my router not working how it should. I have been getting the run around from them every time a consultant calls me and now, I'm at a point where I am going to cancel my contract, so I need to know if anyone will be able to assist me with a new router or if by business isn't good enough, if I don't get feedback my end of business today, I'm cancelling my contract, we can't be paying for no service there is no problem taking my money every month so why can't I get the same service?