Thanks, didn't think it would. Will inform them and will also ask for the online TM30 login info so in the future I can do it myself. Passport and address are correct. :-)
Will depend on if it is a direct international flight from Chiang Mai as to whether you can use immigration at the airport. Everything can be done there including the forms and photos.
Examples:
You fly from Chiang Mai to Bangkok
You fly from Bangkok to another country
You must get your re-entry permit at the Bangkok airport
or
You are flying from Chiang Mai direct to another country
You can get your re-entry permit from the Chiang Mai airport