If I were Swiss Stop I would want to know about any failures.
If you don't report it - they can't fix it for the future. I mean you've spent more time on here discussing what to do about it than it would have taken to email them ?
Found five minutes to ping an message on their site. I suspect they'll just point me back at the retailer but you never know your luck. I'm not going to expend any more effort than that.