That's good to know.
I'd always done it online. I got back to Jomtien from the UK in February and thought I had 90 days before my next registration. A few weeks later, my agent said I should have gone immediately to immigration to file. I don't know if that was right, but I paid him a small sum to go and sort that out. Now on the next renewal my online registration was rejected and said, go to immigration immediately. I've still got a few days left, but I can't be bothered to waste a bunch of time form filling/queing up/waiting and money on all the paper work. If it's not a big fee, I'd prefer to pay him to go. Although pretty pissed off about it.
However, if that comes up on my next online report as well, I'll certainly go down.