baht last November when I got my Non O from London but that was for an Annual Multi-trip policy. I used a Thai broker/agent though the policy was with a European company. You could try messaging Arawan Namak.
I’m sure you’ll find her on Facebook. She usually replies quickly.
As they’ve been misused Ed visas will be a red flag to immigration and could lead to questions and hassle whenever you try to enter the country. I don’t know how long you hope to stay for? Remember you can stay for nearly 3 months on Tourist Visa.
You can extend for 30 days at any Immigration Office, it’s fairly straightforward.
You don’t need a return flight to get a Tourist Visa, an onward flight to a neighbouring country is fine. Whether they’d accept a flight to Singapore, I don’t know but the London Embassy is pretty good to deal with so it’s worth asking.
If you apply for a Tourist Visa they will want to see an onward flight (doesn’t have to be a return) out of Thailand and probably within the 60 days validity of the visa.
If you travel without a visa you are likely to be asked by the airline at check-in for proof you are leaving Thailand within 30 days. Again, doesn’t have to be a return flight just travel out of Thailand. You are unlikely to be asked for proof by Thai immigration.
you keep on repeating this assertion with zero evidence as if it’s what happens with all agents. It is extremely rare for that to be the case and certainly never the case with any of the numerous agents in Pattaya who all deal with Chonburi immigration.