Hello folks,
Update on my last post.
Flew with Aer Lingus/BA from Belfast to Heathrow then BKK.
Didn’t ask in Belfast or London when my return date was and in immigration at BKK I didn’t fill in my return date on TM6. Went through the Thai only section as was with my wife.
No questions asked at all.
Still I took advice and had a cheap flight to Penang within the 30 days and have my original flight for start of May.
Thanks for the advice people.