lowes canada improper installation toronto Ontario

In June 2013 I paid for a new garage door and garage door mechanism installation in full. The installer did not have a battery for the existing keypad and neither did I so the installer left without programming the existing keypad to open and close the garage door. I went and bought a battery for the keypad and my son and I attempted to program the keypad to work with the door. Unfortunately the door locked and we couldn't get it open nor could we get into the garage. Spoke with department manager for the door as well as somebody in installations department from Lowes who demanded $100.00 for the installer to return and open the door. I agreed to pay this but the garage door department manager thought it unfair I should have to pay the $100.00 so he and the person in the installations department had a fight. The garage door department manager said he had made many sales for Lowes and the company should be grateful and dispute who has to pay the installer of the door the $100.00. The installer came, took off the weatherstripping and opened the door blaming us for locking it and stating we could not use both the keypad and the remotes to open and close the door. The installations department manager  demanded payment by credit card for this visit and stated the installer recommended i purchase emergency stops so the door would not close if there was something underneath it. I agreed to pay for the visit and purchase the stops. I wanted to give the credit card to the installations department manager directly and went to the store again and again but was not allowed to speak with her. Over 2 months I went to the store to also speak to people in the garage door department and the department manager. The department manager would say a couple of words then take off for 1.5 to 2 hours over several visits i made to try to get the installer to return to fix the problem. Every time he had an excuse that he had to leave and would return or call which he did not. All other staff said they would look into the problem and call me back but no one ever did. At the end of August I finally managed to meet with both the department manager and the installations manager after having spent 2 hours waiting for them in the store. I agreed to pay $135 for the installer to return. I agreed to purchase  the quick release lock from the store  and a new keypad so the installer when he returned could also put that in the door. The installer did come, he put back on the weatherstripping, installed the new keypad (the department manager said they had discovered my existing keypad would not work with the new door), and the quick release lock. I was so happy I signed the paper the installer gave me and forgot to check if the emergency stops that prevent the door from going down all the way when something is underneath it were working. Later my son and I tried to emergency stops and discovered that they werent working after all. I returned to the store after attempting to call the installations manager and once again was told she wasnt available. The installations manager did agree to pay the installer of the door the $100.00 he had wanted. The problem is the garage door still doesn't work properly and it is now September and I am wondering if I have to spend another 2 months in the store trying to get Lowes to resolve the concern I have with the door and many many hours. 

I had said to the garage door department manager the last time I saw him that he should have made it clear when he sold me the door what accessories or components I would need or want to get the door functioning satisfactorily. He would not accept responsibility for this and stated that he did not know what I already have installed since I had had an existing garage door. However the installer had come to my house to look at my garage and to give me an estimate on the cost of replacing the old door. I believe also the installer should have stated what accessories or components I might want or need in addition to a new door. I also believe that Lowes or any retailer should not insist that customers pay by credit card over the phone if customers are not comfortable with it.