Sawatdee again! If you wouldn't mind, then could you please forward a link to that YouTube video for USCIS Contact Center live help tip/formula, or via DM/private message? If not, then that's okay too! Thank you very much in advance!
The OP is referring to a LA-B2 Lao Visa, which is a one-year multiple entry visa that permits work/employment. He is not referring to the B2 U.S. Visa or B1/B2 U.S. Visa, which is essentially a Tourist or Visitor Visa that does not permit work/employment.
Therefore, a similar Thai Visa to the Lao Visa could possibly be the Non-B Thai Visa??
Wish you and your family ssfe travels for a good resolution to your dilemma.....Thankfully, you got thru to CBP quickly, as trying to contact USCIS takes forever, or, a task in perseverance of waiting on the phone for hours.....
if CBP is not able to give you a successful Redress Control Number, then all else fails could be to apply for a Returning Resident U.S. Visa at the U.S. Embassy (last resort)....
From these circumstances and the fact that the airline received these messages through their reservation/booking/ticketing system, then submit a submittal ("complaint") via the U.S. Customs & Border Protection (CBP) TRIP System, where, at the very least, a Redress Control Number would be generated and would help resolve your issues with any airline system (for air ticket destinations into the U.S.)
Steps:
1.) Select None of the Above;
2.) Select Air Travel;
3.) Select My complaint is related to my experience arriving in or departing from the United States;
4.) Select I Require a Review & a Response;
5.) For Where Did This Happen? = Foreign;
6.) For Migrant Registration Number (LPR Number) = A#
What type of U.S. permanent residency/Greed Card does she have? Is it a Conditional Green Card with validity for 2-3 years? Or, is it the full U.S. Green Card with validity for 10 years?
Also, since there have been multiple trips outside of the U.S. with the Green Card, how many trips total and what was the length of each trip outside the U.S. ?
These may seem like intrusive and invasive questions, but to pinpoint why the system flagged down someone holding an unexpired U.S. Green Card that has, for this trip, been outside the U.S. for less than 1 year, then these particular questions would help pinpoint if the system flagged her as abadoning her U.S. permanent residency or not....