First if all just to let you know, this is a community forum with member like you, Airbnb do not manage or read the messages on this site.
Re editing address, try doing this via your mobile app as it is more flexible in the options than the lap/ desk top.
If all else fails, contact Airbnb and get them to do it; contact options via link -Contact Airbnb.
Hope you get it sorted soon, must be very annoying for you too in addition to confusing the guest as you have mentioned.
Best wishes,
Ama