I found the way to bypass Anti-Cheat but then encounter problems.
When an pop-up open say you get banned and your save data will be delete in 30 days, it's a big lie. They can't touch your save data, your save data is untouchable. You have 4 save data, 1 on Township server, 1 on Facebook, 1 on Game Center/iCloud and last is in your device.
The truth is they deleted your save data when that pop-up open. Anyway I found save data on Game Center/iCloud not work, seem like they just... don't exist so I think they can touch your data on GC/iCloud. Not check Facebook yet so not sure about save data on FB but no I think no hope.
Save data in your device is really untouchable, just don't do hard reset. But after awhile I found out it's stop saving progress, you can play as long as you can but if you reinstall it's back to somewheres, sometimes... One upon a time...
And last, sorry for my English!