Currently on a 1 year non-b with multiple entry, if I go on visa run to Ranong and still have 3 or 4 weeks left on my current visa, they will still give me 90 days right?
TLDR : Answer Summary
If you go on a visa run to Ranong while still having 3 or 4 weeks left on your current 1 year Non-B visa with multiple entries, you can still receive 90 days of stay as long as you enter Thailand before your visa's expiration date.