I sent a 90 day report by registered post on 12 March enclosing all documents listed on the immigration website and a stamped addressed envelope. I sent it to the address stated on the website. On the Thai Post tracking website it says it was delivered to Laksi post office. I sent it over a week before the due date. I haven't received anything back yet and the reporting window has passed. I tried phoning the numbers on the website but the 1178 one just says sorry all our agents are busy please call back later before hanging up and the other one says "for English press 1" and then starts talking in Thai and hangs up. I sent an email but no reply. Of course, the obvious solution is to slog it up to Chaengwattana but the whole point of doing it by post was to avoid that. Any suggestions? This was the first 90 day report at this address, this passport and this entry.