there are agents in Changi Mai that can get your resident certificate for you. I from Bangkok... But Changi Mai is easier to get cert.. Google visa agentsor search Facebook, they will pop-up..
now it sounds like you want to keep living here... If it's just one more time get a tourist visa or risk it. No one can tell you if you will have problems or not... Just up the officer on the day.
There are other long term options. Ltr, investors, work permit, business... There are companies that can help you set this up too... Some of them can be in a grey area though.
Followup questions regarding your elite visa.. We have a lot of discussion in the elite groups about the volunteer visa issue... Did elite deined your application during the check portion? In other they discovered before approval and rejected? I also want to assume this was an agent volunteer visa, but correct if wrong.
Having a tourist visa is better than visa exempt for successful entry. If you are granted a tourist visa at am embassy you will have a higher success rate at the border. In your situation you are probably better to get a visa.
Regarding your situation..You don't say how long you were in Thailand.. Which is the biggest part.
3 visa exempt trips is no big deal if they were 1 week each...but I am assuming you extended each on for 60~75 days? Then you will likely be pulled aside soon and given the visa talk and may be deined entry.
Asked on your requirements, elite is a good choice, but again still at a higher cost than an non o.
The least amount of admin/paperwork. They help you with everything immigration related and 90 days reports. Elite can assist you with even non-immigration matters too, like drivers license, banking, atc.
You get vip entry at airport into the country and on the 5 year get private car to and from your hotel or home.
Never have to worry reentry permits. Each time you enter you get one year stamp. But if you stay continously can extend at immigration.. But if you travel a few times a year then never have to worry.
Elite doesn't require health insurance either. So you are free to do what you want.
I should mention I am in my 30s though. You should of course consider the retirement visa. Elite is a lot easier though... So it's up to you determine if the convenience and prestige is worth it.