When I asked you to send your resume on July 6, maybe they needed more information when verifying the information, so your visa may not have been transferred to the mail office on July 6. At that time, the visa officer told you that it passed, and they would give you a notice to handle the mail. Sometimes there are messages for you on red or blue paper, so you can call the embassy (it takes a long time for you to make an appointment for a visa, and the calling card is time-consuming. The information should be verified side by side, which I think is a deliberate extension of time. Normally, the visa will be sent to the address you fill in within one week (make sure your address is correct)! One more thing, when you send the fax, you should call him to confirm whether they have received your resume (because the embassy sends too many faxes every day, or the fax is out of order, it is possible that they have not received your resume, verified your information and failed to release your visa). Don't worry too much, as long as they pass the interview (unless some of your information is later found to be false), they will usually get the visa smoothly. By the way, I'm in America on business now. If you need help, please ask me!