Sorry, my bad. Well in this case, you can apply for one 30 days extension of stay.
In an emergency, you could always apply for a second extension. Then you'll get a stamp saying "Extension Denied" and an order to leave the country within 7 days. You will also need to sign a form where you acknowledge that you understand the implications of overstaying those 7 days.
2. Take police report and any other means of identification to your Embassy
3. Take Emergency Documents and letter from the Embassy (and if possible, your Embarcation Card) to Immigration to get a new "Permission to Stay" stamp in your Emergency Passport.
Ohh I had exactly the same just before Christmas but was way faster. I did track the Ems number. My son posted the card on 22 December 2022, I got it on Saturday 7 January 2023.
Took only 3 days from Exeter to Bangkok Sortation Center. From there 5 days to Koh Phangan and from our post office to my letterbox took 8 days. 😋
1. You just go to check-in, if they want to see an onward ticket, ask to speak to the supervisor and explain why you don't have an onward ticket. E.g. onward travel by land, changing visa status in Thailand, etc...
If they still insist, just book a cheap AirAsia flight there and then. Then cancel it within 24 hours.
2. You buy an expensive, fully refundable ticket directly by the airline. Then you cancel it once you arrived and get all your money back.
2. You buy cheap AirAsia to a neighbouring country and either visit the place for a few days, then come back overland.
3. Buy a booking reference on "Onward Ticket" or one of the many sites offering that service, but be aware, it's a scam. It might work, it might not.