you are not getting ANY visa when you bounce out/back you you GOT the visa emailed to you once the consulate sent you the email saying the visa was approved.
You're ACTIVATING an entry from it so you get stamped in on it for 90 days
The visa is the PDF file that came in the approval email
You PRINT that out and you show the PDF with your passport when you go to stamp back in and they will stamp you IN to thailand for 90 days FROM that Non-B visa PDF print out you have
Now whether you can bounce out/back to activate that visa entry at the Ranong border by water with Burma would be totally up to the passport control officers at the border when you go to stamp out of thailand. You should be able to
make SURE you have the correct documentation from your school to upload, apply online, go pay in person at the consulate and you should be approved in a day or two after that
those are the two fastest consulates in S/E Asia for "regular" Non-Imm visas (B, O, ED)
BUT it will let you get almost 9 months of stay without being hassled by immigrations rather than bouncing out and back to milk free stamp entries and run the risk of denial of entry after one or two 🙂
They don't want to see it and you don't have to print it out, as soon as they scan your passport into the system they can see whether you filed or not on their screen.
So what it sounds like is you went to Penang and applied online thru the eVisa website, (which you say you didn't know had switched to the eVisa online system BUT they did that back on October 8, 2025 🙁 )
BUT
you couldn't stay there until the visa was approved and came back to thailand NOT on a tourist visa, not on any visa at all, just on a free stamp entry for 60 days
THEN
you got a request for more documentation, which you uploaded
BUT
The good news is that your eVisa was approved (y)
You can now print out the PDF from the email they sent you OR go back to the eVisa website and find that application, then print the visa.
Now that you have that Non-B visa you just have to exit/re-enter the country. (you aren't getting ANY visa at the border, you HAVE the visa its that PDF file)
You need go to the border, stamp OUT of thailand, stamp in and out of Malaysia, then show the PDF of the Non-B eVisa when you stamp back in at the thai border and you'll be stamped in for 90 days
Glad you got the visa, it is valid for 3 months from the date it was issued <- meaning you have 3 months to ENTER thailand on that visa and get a 90 day entry stamp. So there's no hurry to run to the border because you're on a 60 day free stamp right now and can use that time to plan a border bounce
Good luck with it, sorry you had issues, but sounds like it worked out