The blue receipt shows a date to go back to immigration...you just go there hand in your passport and receipt and they will stamp your nonO on to the passport there's noting to worry about
not many ppl realized the 65k method most are too happy to go tru the 90days and 1st year extension....like myself i miss a few mths for my 2nd extension I can only do it at my 3rd extension....after confirming from the immigration officer....it's a taunting process for me as i started from scratch without agent luckily I had a thai bank acct few years back which I use for the convenience of travel not planning for retirement at that time