In reply to jbrom:
Devils advocate here;
5 years old, remember lifetime warranty is for the product not the owner.
5 years worth of use and flexing will cause the plastic to delaminate, especially at the neck as this is where it gets flexed most.
IMO I would be happy with that lifetime, I have never had a platy last that long, but I am happy to accept "fair wear and tear" as the cause of failure.
I have only ever sent one platy back and that was about a month old and had separated on the moulding for the collar.
And normal process for warranty claim, if you go ahead, is to return to point of purchase with proof of purchase.
Cheers
GB