Should I be returning these Castelli shorts? Poor quality?

I bought some Castelli Evoluzione 2 shorts on the 6th of April - not even 2 months ago. I have ridden 1300km with them.
The sticky liner around the thigh has come away from the lycra on one side and is starting to peel off on the other side. The stitching is also starting to come away in several areas of the short.
These have been machine washed and hand washed. (Will hand wash 2-3 times and then machine wash)
The sticky liner around the thigh has come away from the lycra on one side and is starting to peel off on the other side. The stitching is also starting to come away in several areas of the short.
These have been machine washed and hand washed. (Will hand wash 2-3 times and then machine wash)

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It's always possible that someone could say 'they're fine - carry on wearing them'
He's been badly stitched up.
Poor thread, this.
I machine wash all my kit - none of it has fallen apart like this. Good quality kit shouldn't fall apart at the sight of a washing machine.
Send/take 'em back.