Wallace Air Conditioning & Heating

He put a new AC unit in our home 3 years ago it is still not working correctly I never had had AC in my bedroom since day one. Told me he had a part that had been recalled and he would come and fix our unit and 1 year later still havn't heard form him, He will not answer or return my calls. The worst service I have ever had from a company that is suppose to be a professional.