Becoming of a Ghost city

DeletedUser16174

Guest
I have read the archives & I'm getting conflicting answers to when cities become ghosts. w/o being a premium player, I'm to understand it only takes 15 days of inactivity to ghost a city. I have been farming these cities non-stop, since their second day of inactivity. They are well over 15 day's. what is the deal w/ that?
 
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