Anna, your post is completely unhelpful and frustrating.
= I have never logged into Township on anyone else's device.
= I still have the tablets and phone I logged in on in my immediate possession.
= I never use simple passwords. They are a mixture of letters (upper and lower), numbers and symbols.
I believe the problem is with your coding. Possibly similar to the issue you had where people could take products from other's markets, ports and foundarys.
I have asked more than once for the account/town to be deleted. As of last night, it was still there. I have uninstalled the app.