You don't actually have a visa. You have a free entry stamp. You can go up to 30 days before the stamp expires, except in Jomtien where you must go within the last seven days
No such thing as a 60-day Visa On Arrival. I'm guessing you entered on a free entry stamp. Go to your local immigration office and get a 30-day extension. You can go anytime
VFS is an agent. I never said they were dodgy, nor did I imply that. You're obviously not aware that you can make an appointment through the normal immigration office, pay the 1900 baht, and be out in twenty minutes.
If you intend to travel overseas regularly (2-3 times a year) the DTV is the best visa by a country mile. The new "Super Visa" which has seen thousands of applications and people switching from ED, non-O retirement and non-O marriage visas in their hundreds. A very easy to use visa which requires zero money to be put into a Thai bank account thereby circumnavigating any taxation issues. It's the Thailand Visa Of The Century
VFS is an outsourcing agent for the Thai government. They charge for their service of obtaining a extension of stay, or you can just go to immigration and do it yourself. If you're happy to pay 500 baht for absolutely nothing, go for it! 😂