I am also from NZ been in Thailand 15 years Apply for what is "called" a retirement visa from the zthai embassy in Wellington Web site is good explains it all but u need apart from passports
1 Police report get from NN justice depart on line application no issue but takes a few weeks
2 Medical form signed by your GP suggest get first form done but not dated GP will advise Then in future just copy last form and date.
3 Financial info from bank or eg.Milford finance showing available funds
4 If you have friends or family in Thailand Intro letter from them like s character ref.
5 Ticket to Thailand can be just itinery re travel doesn't have to be paid for at application time
The visa section in WLG very helpful they will respond with advice and info via e mail..Fee is around 300$/person and visa from embassy is always multi entry unlike when applying in Thailand thru an agent when it cost 4000b extra for multi entry.
Or just use a agent in Thailand at a cost of about
I am in Thailand with a one year multiple entry visa Issued at the Thai embassy in my home country.I have already been here for 3 months departed and arrived and received another 90 Days.
I realise there is a difference if u get the visa in Thailand but if u apply in your home country that is what u get
That is not your visa.Assuming u applied in your home country u should have a 1 year visa.Hopefully u applied for multiple entry.When u arrive in Thailand u will get a stamp in your passport as u have shown.The O marriage visa is a one year visa but it requires a departure from Thailand within 90 days exactly as your stamp shows After u departe and re enter u will get another 3 months.U cannot get this extended at immigration it requires physical dept and entry which u can do each 3 months until the 1 year visa expires.Then u need to get a new 1 year visa.