Either your husband gets a non-O based on being over 50 and you become his dependent or you get a tourist visa before entering Thailand which is good for 2 months, go down immigration and extend for 30 days then you leave.
You pull your big boy pants up and get down to Immigration unless you're in hospital when you ask the hospital if they can help get your extension. Alternatively, overstay and pay the fine.
nah, hasn't returned and I haven't heard of any plans to bring it back. They're about to introduce their equivalent of GDPR either tomorrow or 1 July, forgotten which one, which would make it impossible to bring that letter back. Whether they follow their own rules, however, is another thing altogether 🤣