@Jordan ******
this story just doesn't make any sense at all
If she's here on a 30 day visa exempt entry (meaning she arrived within the last month) she should have no issues at all getting a 30 day regular extension on it for 1900baht at the immigration office in the area where she stays.
She might have to prove to them that she's 'registered' as staying there (with a TM30 receipt) but I can't see any reason someone would get denied a 30 day extension on a 30 day visa exempt entry at ANY immigration office in the country.
Sorry, didn't see that the O/P clearly stated the person in question was from the US ๐
There is more to this story than is meeting the eye I believe ๐
The upside is IF the person in question IS moving to Bangkok this weekend, they can go to the immigration office on Monday (IT Square Laksi Plaza <- which is where visa exempt entry people go) and they should be able to apply for a 30 day regular extension without any issues for 1900baht