sw in Toronto

In December 2017, we signed contract and asked constant home comfort technician to do attic insulation for our home. We specifically mentioned to sales person and service person that our master bedroom above the garage is a lot colder compare with other rooms. One year later. In December 2018 we found water leaked marks on the ceiling of master bedroom. We thought it was water leak from roof so find a roof company to check/fix. We paid $400 to the roof company for the service. To our surprise, It turned out constant home comfort technician didn't do any insulation above our master bedroom at all!!! Because of no insulation, in the extreme cold weather, Water condensation caused water damage to the ceiling in the master bedroom. Even though the company sent staff and fixed insulation on top of the master bedroom later on, constant home comfort refused to accept the responsibility of our loss and the damage. The worst thing is the customer service experience I dealt with constant home confort especially with Mr. Xu from December to late February. I called almost every week to follow up but was pushed back with different excuse. I also sent email inquiry and followed up three more times afterwards asking for official answer but did not get any reply. (I called Mr. Xu after I sent email and he confirmed he received my email but still I don't get reply in writing ) Initially Mr. Xu does not believe it was caused by condensation. After a few weeks delay, the company sent a few batches of staff to check and the last person (Mr. Long) confirmed it was caused by water condensation. However, after Mr. Long sprayed the water mark on the ceiling with white paint as a FIX (the color still looks different), the company still refused to take the responsibility and offer any compensation. In the end, Mr Xu even asked us to find a company to certify that the water mark/damage is caused by improper attic insulation?!!!