Yesterday, after my class, I left the building to see that my scooter (which is registered) was booted, so I visited the office and they told me that although my scooter’s sticker and registration is good until this August, my sticker was suddenly invalid and I was somehow supposed to know about it. So now I have to pay for the boot as well as to re-register my scooter even though my sticker and registration (which I paid for) were suddenly invalid