SixBros assumes no guarantee

Product with manufacturing problems but SixBros refuses to recognize it.
The springs protection collar broke up a little less than a year after purchase.
We sent pictures to SixBros. They said that the guarantee could not be applied because it came from a misuse of the product.
These are children aged 5, 7 and 9 years who use it !!! .......
This response was made to us without the supplier does not require the return of the product.
Judgment of the problem on a single photo. Their argument is: product registered so flawless ....
Second experiment to discover in the opinion of 2m55 trampoline offered to children of our son (1 problem was not yet occurred at the time of 2nd order .. otherwise !!)

Future clients to judge.