Of course, just get a visit visa approved. They need UK sponsor, evidence of funds, or financial sponsors confirmation, full itinerary and reason to return to Thailand (no 1 issue). UK Immigration website covers all the requirements and there's a checklist on there somewhere
Depends on immigration officer decision. And no one on FB can accurately predict what they might decide. Safe bet is replace it as then guaranteed no issues, or risk it and see what happens
Nope, disagree. Food in PH is poor overall, and if you want decent food it's is very expensive. You get more Pesos per dollar, but get less for your money .