Click on Ita matrix - not a booking site but finds you many routes/fares in a 30 day window, to use your flexibility to find great deals. (personally I avoid cheap deals with Chinese airlines but Taiwanese like China Air, Eva are good)
probably a mistake.. Here in CM they always want to see tm30 if 90 day in person, but they do give it back..Not a big deal though as you are in the system. Next 90 day can be online - unless you have been away, in which case you will need new tm30 anyway
hmm. When In UK she can authorise a transfer there. Not sure they will see that therefore as a reason to return, but just show funding for her time in UKand/or or Damians financial sponsorship of her trip backed by uk bank statements. Worked for us
The critical thing is to show real evidence that she will return to Thailand. A credible employer letter making it clear she must return after her 'holiday', and/or birth cert of her child(ren), and/or copy chanote of property she owns. Without those your invitation letter is immaterial, imo.