coming back to the real purpose of this, Hainan is still looking for expats and there is a chance to get the expenses back it may take some time and if they cannot fill the positions they need to come back to the pilots they screened already.
Keep on trying and send some e-mails time by time to remind them I am sure when they try to hire you then you are flying for another company
and you just ask them to refund you before you say that you are not anymore available for China.
Good luck, I am trying since 2 years to get my expenses but I can wait
you always meet them twice the first time they are in a better position
and the second time ........