I sent a letter to Qui Minnan at the following address: Ren Yu Lan, 491 South Chang'an Road, Xi'an 710061,China but my letter was returned to me with the message that my letter could not be delivered, why is that and should I try again?
I think the address is not accurate enough. It lacks Yanta District and detailed building. Also, there should be a contact phone number for the recipient. The postman needs the phone number to contact the recipient.