Illiterate and rude.
The main goal is to take money for work.
They said that any plaster can be used on a gas block house and buy it yourself. When I started asking questions, they answered that the consultation was paid.
! Please note that the finishing of such "specialists" will last a maximum of 3 years without repair, then ugly spots, cracks and streaks, and all claims will be redirected to the plaster manufacturer.