1.Check the unlock sign in the remove.
Because alarm system can on unit without key.If it didn't turn off ,Follow step 2.
2. Remove the connection of the battery or turn off using the switch inside the seat compartment.
3.Check if the ebike turn off, then put back the plug or turn on the switch.
If still the ebike turn on, call to the nearest branch for home service or bring to the nearest store.
Posisble problem is alarm system for unit with remote or key swicth.
Reminders never let your unit somewhere, because it was turn on!!!