But my plans are to stay in Thailand permantly so the way l explained it works best l think. The wedding is 10th May which means the extension is the 17th May if l do not regain the 15 days from the TR visa
In my case l printed out a Google translated request to not use my O visa and to stamp me in on a visa exemption, he called his boss over who could speak English and wanted to make sure l understood what this would mean. Satisfied with my answer they wrote some stuff in my visa stamp got me to sign it and in l went. Easy. This was about 6 months ago.