My AC went out at the house and had a company come...

My AC went out at the house and had a company come out and quote me $5000 to replace the furnace and coil. Called Service Wizard and they said it would be $2800 to $3500 depending in the system, but he said there is no way it needed to be replaced now. Just charged me $495 to replace the control board. All cold again.
Thanks Service Wizard.