Hi,

Im currently abroad and got a single entry NON-B, i will go Back to Thailand again tomorrow and start the process of getting a WP.

But something has come up, i need to leave Thailand a few daya after im arriving.

Question is, should i, when i enter Thailand, use a 30days visa exemption, and "save" the NON-B, and is that even possible? Then leave Thailand and use my NON-B when i'm back to finalize my WP?

Or should i enter on my new NON-B and try get a (multiple) re-entry permit once i have arrived in Thailand?

Thanks for a urgent advice

You are unlikely to be able to not use visa entry if they see it but you can ask - if they use the visa you can get a single re-entry permit to cover your trip (unless you plan more than 2 or 3 during the 90 days allowed for that visa single would seem to fit - if you plan to extend you would get multi then as it only covers your current permitted to stay period.