If I try to use the old app after the deadline, will I be redirected, locked out, or shown an error message?

Starting March 31, 2027, we'll automatically guide you into the new app - a login redirect takes care of it for you. All you need to do is log in again once.
What happens to my account, my charging history, my RFID card, and any credit balance if I let the deadline pass?
If I only re-register with JOYA after the switch - will my previous history be restored, or do I start as a new customer?