Ouch. This expensive item went to the
Recyclinghof (where I hope someone rescued it and can repair it).
A schoolmate of T1's "tried it out" and carried it by the handle, which is strictly verboten and voids the warranty. I was pretty angry, because we started every day reminding her that the bag is not carryable by the handle, she never did so, and the "friend" who carried it "for her" wanted one herself (and wound up getting one a few weeks later).
She never apologized properly and the girls have not been friends since: a sad result.
And then we had to purchase exactly the same thing again, because T1's school books are so incredibly heavy that she must use a rolling bag and the cheaper ones barely last a few weeks.
Sigh.