I don't know why people keep saying this. If you get a new passport, go to immigration, fill out the form and have the extension stamps transferred to the new passport. As long as this is done, immigration have your new passport on record. You can then do the 90 day report online as normal. Jomtien immigration. I did my first report online last December and this week I did my 2nd. Reported online at 14.30 and approval was back 08 30 the next day.