Official site: https://www.tier.app
TIER Scooters @Facebook:
https://www.facebook.com/tier.scooter/
TIER Scooters @Instagram:
https://www.instagram.com/tierscooter/
TIER Scooters @Twitter:
https://twitter.com/tierscooter
TIER account login:
https://tier.frontend.fleetbird.eu/
TIER customer service/support:
https://www.tier.app/get-in-touch-support/
https://www.tier.app/help/
eScoot map app (IOS & Android)
https://escoot.bike
Telegram group for eScooter riders
https://t.me/escooters
See also:
TIER Electric City Scooters 