Originally Posted by ard

Sue him. Small claims

Tell him he can avoid that by replacing the rear window, at a shop of your choice.

(The reason he agreed it is "Average" is that "Average" is perfectly acceptable...he knows it gives you no grounds for a claim, etc...)

Some tint films are too stiff to conform to the defrost lines and the dots... but good shop will know this and either refuse or let you know/agree in advance. Even if the film is the issue, he should not have installed it if it will not work right.

Go to a better shop and get a second opinion, better a written estimate to fix.

GL

A