Forrest Air Conditioning

When Forrest Air Conditioning installed our air conditioner, they did not leave us any instructions on how to use it. I have tried on two occasions to get Mark from Forrest Air Conditioning to come around and show us how to use all the functions on the the key pad and check to see if our air conditioner is working properly. On both occasions he has not arrived, No Phone call, just does does not pitch - so think carefully about using them.