I experienced the same when dealing with Pryde - broke an X9 boom (not cheap) I'd only had it a couple of weeks. The dealer said "no problem, we'll get that replaced" but after TWO months of haggling gave up and the dealer gave me a 20% discount on a replacement boom by Aeron and I sold the broken one to another windsurfer at the club who also had an X9 that was broken and was able to make one from the two.
Not impressed with NP customer service AT ALL!