If the automatic open/close mechanism or the button gets stuck, it is usually sufficient to press the folded and tied umbrella firmly towards the handle. This will release the jam in 99% of cases.
The umbrellas are built in such a way that they cannot break under normal circumstances. The mechanism is very robust and you can usually release it easily by pressing hard.
If the problem cannot be solved, write to us or call us and we will take care of it.