@Prieto ***

the OP says he might want to stay on for ‘teaching or educational purposes’. He would not be able to, for eg, change STV for education visa

@Karim **************

You almost certainly would not have been allowed to board without a return ticket planning to do a visa exempt at Heathrow by just saying you hadn't finalized your plans yets. Airlines can be fined for that. And I've flown several times a year to Thailand over the last 6 years. I even had my return ticket scrutinized pretty thoroughly, it certainly wasn't a quick glance.

@Karim **************

If you have a visa you are not usually asked by the airline (because they presume this has been done as part of the application) but if you plan to travel on Visa exemption, you are very likey to be asked - I always have been when traveling from the UK

@Prieto ***

If you get an STV visa you can't change it to any other kind of visa in country. If you want to do this, you're better off getting a standard tourist visa

@Harrison ******

just book something fully refundable until 24 hours before on Hotels.com or similar. That’s your proof

@Benjamin *****

Yeah, I think it was a blip. I know at least one person still with them.

@Benjamin *****

Are you sure Iglu shut down?

@Benjamin *****

No but this is:

Companies like Shelter Global and Iglu enable you to work legally for a contribution of your income, if you're eligible

@Lou ******

STV is listed on their site, I’ve just sent it to someone