Credit account for phone service that never worked.

I have just cancelled my account because of horrible service.  I signed up for the internet and everything was working well.  I opted to bring in my home phone number.  You guys started charging me like $30 a month.  The issue is and I went through this ever since I opened my account was that you were charging me for a service that never worked.  I called your porting department many times and they told me that my number had been ported.  Every time I tried to call my home phone number it would say that the number was not in service.  I would then find out from my old carrier that they would say that I had called them and cancelled it, but that was a lie since I never did call them for that.  They bill me like $100 to reactivate that line every [Edited: "Language"] time and you guys keep telling me that my number got ported, but then my carrier would have my line cancelled again.  You have billed me for about 10 months for a phone line that never worked.  Check your records for my call ins.  Now you have the gall to bill me an early termination fee when you never delivered services to me that worked but billed me anyways?  This is totally unacceptable!!