Bad service

I am so exhausted honestly I am tired. I have been sent from pillar to post. I ordered a n iPhone and was offered a package that came with a router. When they delivered they only delivered a router without the sim card and the phone. called in about this and asked them to come and collect router as this was not what I initially ordered as they now claimed that I did not qualify for the phone. They collected the router but I am still being charged monthly and my account is currently sitting in arears for something that I did not receive or even use. This is affecting my life and livelihood as I am losing out on employment opportunities. Called in and I am being sent from pillar to post the stores can assist as they told me they dont assist with online sales.