The first 24 hours of an overstay the fine is waived. If more than 24 hours then the fine is 500 baht per day, plus the first day, The maximum fine is capped at 20,000 baht
They do visits for marriage extensions to establish if the relationship is real and not a marriage of convenience. You must get a neighbour or the village head to confirm you live at the address. I've no idea why they would visit a retiree.
Thank you. I'm off to Singapore on 13th May for two days before flying to Manchester, UK. The flight was £300 cheaper than Bangkok, so as I have never been to Singapore, I thought it would be a good choice. I see it as a free holiday in Singapore. I'm not sure why UK flights are cheaper from Singapore, but I'm looking for return flights in September and they're still about £300 cheaper than Bangkok.