In Jomtien, they told us, not necessary,big returning to registered address, other place or abroad. My wife came back, did also her 90days, on line, no problem.
If you registered at immigration as living in Pattaya, no need. I did go, last year, after being abroad for a month. They registered again in Jomtien, but said, there was no need to do again. I do use, my drivers licence, when going to hotel here. Also, on your next 90 days, you fill your actual again, anyway.