People who have moved into the household registration for less than 10 years need to send a letter back to their place of origin for investigation, and the normal time for reply is ten working days. What's the reason why your reply in Hangzhou didn't come to fruition? It didn't come to fruition in Hangzhou. If you didn't receive the reply from Xi 'an, send it again at the original processing window. If you can't find your origin here in Xi 'an, write it carefully and send it again. What you have to do here in Xi 'an is to ask your classmates or friends to go to window 13 of the accreditation hall of Xi 'an Entry-Exit Administration Office to ask whether Xi 'an has not received the letter or has not replied after receiving it. The window 13 is recorded. Ten working days (15 natural days) are normal processing, and there is no hurry.