Can you be turned away from Thailand with a METV?

if you're paranoid, and if entering is of high importance, a vip airport service maybe helpful.

Are you already in Thailand ?

Did you enter Thailand with the METV multiple entry tourist visa ?

What was the date the METV multiple entry tourist visa was issued?

What is your passport nation?

You say you've been out of Thailand since Sept so that's comin' up on 9 months, you should be okay

BUT with that being said, it is indeed possible to be turned away (denied entry) holding a valid tourist visa to thailand

Whether you get in or not is 100% in the hands of the person you're standing in front of at passport control when you stamp in

The fact you're holding a visa doesn't mean you get in, just that if they let you in they have to give you the days that visa allows you to enter on.

I'd say have proof you're flying out of thailand in 60 days (as if they're going to hassle you that's what they'll ask for first) and hope for the best.