I'm a Llumar user since 2022 till now, 3rd or 4th car tint with Llumar already, latest being CRV with latest titanium 8 package (T8-35) where the side windows security film are 8mil thickness (visibly thick when looking from sides against the window glass, crazy)

and these new tints, have new guideline of up to 60days (3 months) curing time:
[attachmentid=11518860]
with that out of the way.

1) issue with your tint(or installer)
I previously had AIR50-65 (if i remember correctly) and now CTX50 also no issues with smart tag ever.

2) installer fault, but give them chance for the tint to cure, if after a week or 2 still same, go back claim. Llumar have between 5 to 10 years of warranty depending what package you gotten.
my current Titanium 8 is 7 years
previous TCP6 is 5 or 6 years.

3) ya please refer attachment.
however if it's an OBVIOUS bubble, and ESPECIALLY if you can see a speck of dust or dirt within the center of the bubble, then no curing will work. it'll be permanently there.
hence in those cases, claim and re-do.