Updating Maps information in iPhone

My entire neighborhood isn't listed in Apple Maps. For 6 months, I've been sending error reports etc via the Maps app to Apple. I've tried everything I could try to send. I've never gotten a response and they've never updated it. I realize adding my specific address is probably a fairly small priority on the list of things to do from them but it would be nice if I could tell my iPhone-using friends to switch to Google Maps to find my address. Any suggestions?