Ivan's Heating & Cooling

HVAC system installed 7 years ago. Bad installer and nothing but problems since then. Now, 7 years later we have a bad controller board on the HVAC Unit. Ivan's Heating and Cooling never registered the Unit with Goodman after installing it so instead of getting a 10 year warranty, ours was limited to 5 years. Now we have to pay for a new controller board ($500) which should have been FREE if Ivan's Heating and Cooling would have not been lazy and simply registered our unit..