Billing discrepancy

I want to file a complaint 
In regards my sign up with Direct tv 
There was a sign up bonus of 150 when switching from dish That was never applied 

The DIRECTV technician directly removed my dish to install DIRECTV in my house 

before the installation i was quoted $85 via email and my bill has been inconsistent from one $120-$169 

I have wasted hours speaking to every department and managers and my account has not been fixed 

and The projected bill has not been honored nor the sign of Bonus