Interview was moved to a different district, although I didn't move out of district
Here is my short story. Me and my wife applied in March, 2016. We were scheduled for interview in SF district for August, 4. Few weeks before the interview we submitted address change request and later got our confirmation letters. The new physical address is the same city and the mailing address is the different district. Everything remain same for my wife but something wrong happened to my case. It was cancelled and in few days scheduled again for August 30 but in the _different district_ - the Santa Clara district where my mailing address is in.
Thanks to Rajiv and his team for their excellent work. I applied for GC in EB2, non RIR, in Nov'1999 and got the stamping in passport in Nov'2001. The team is very experienced and knowledgeable. They are prompt in filing all documents with DOL and INS in all the stages of processing. Rajiv and his team is very prompt in replying to all my email queries. I strongly recommend Rajiv for your GC processing.