I went to a local shop in NC to make an appt to get my suv tinted. The manager recommended Llumar atr, ( which is what they use) 35% over the factory tint in the back and 15% in the front for a consistent look all around. He told me because they were using 15% which was under the legal % i would have to pay in cash and could get no receipt, ( for legal reasons). Due to this he continued to state that I wouldn't be able to get a lifetime warranty from Llumar since i would have no receipt. Is this a typical practice or should I look elswhere for a tint shop? My only other option would be do 35% all around which would give me the warranty. On a side note, is the atr still a quality film or is ctx the way to go?
Thanks for the advice.