Go to your embassy straight away and see what they say about getting you a new one/temp emergency obe or an official letter of explanation/certification. That's my suggestion to be on the safe side. But as picture is still legible... and as long as bio page and book itself is not extensively damaged .... you should be olay. But again... go to embassy/consulate to make sure
Question.... would you complain in the US... or anywhere on the EU? Sure you would. So what makes Thailand so "entitled "? Their house their rules ...yes. Abide by them? Yes. But there does come a point where even my Thai friends shout back at those not doing their jobs. Personally... I don't. I stay out of it and follow the queue. But I do laugh even if only quietly to myself.
Suggest you come first and see if thailand is a place you really want to retire to if you have not spent day to day time here before.
E-visa or go into your local Thai Consulate and apply for a tourist visa. Try for a 3 month so that you can open a Thai bank account to deposit the 800k which is requited to hold a Non O (based on retirement)
OR
As US citizen you can get a Visa Exempt entry stamp for 30 days that can be thst can be extended for another 14 days. You can do a border run and get another 14
days.
You can do visa yourself or go through a agent here.
Just come first and make sure you will be happy here and is where you want to be.