Does your sweetie need a visa label in her thai passport?
The official line is you don't need one, but not everyone agrees.
Up to today you would pay $70.00 to get the "Stamp" in her passport.
From tomorrow that will be $150.00
So something that not so long ago used to cost nothing now costs $150.00
From memory, I think that's actually more than Thailand charges for an actual passport renewal.
Visa labels. Don't leave home without one.