You're dribbling nonsense at this point. I am being far from aggressive with what I wrote, yet you yourself are sarcastic and showing hostility when others voice their own separate opinion. Did you want an echo chamber to agree with you? Wrong place buddy. You've turned to what's essentially a conspiracy theory as your reason to explain why they "unfairly rejected a claim" contrary to what the truth is.
Let me break this down for you. You did not go through a claim, you did a return. Instead of shipping the unused part back in a clean box, you used the original, now waterlogged box. FCP was gracious enough to offer a return in the first place TWO YEARS after the purchase. Standard practice is usually a 30-90 days return deadline for unused parts. FCP upon seeing the part in a drenched box assumes the part was also drenched. They deny the return for this reason. We all agree that it is clearly stated any return may be rejected for any reason. Now you ask for a warranty on the part YOU NEVER USED! FCP having just denied your return upon the "items condition" now sees you want a new part. Why would they ever accept it? A warranty exists to ensure a product will function for the duration of the warranty. Nothing in their policy is strangely vague, FCP has said that you "would not be able to use our Lifetime Replacement Guarantee. LRG only covers the failure of a part or a part that has been used to the end of its life span." This is absolutely correct and exactly what a warranty is like I said. You never used the product and they think you damaged it in your possession, even if you never did. They, once again within their rights, refuse. End of story.
If you had, which you never would have given the circumstances, done a warranty claim, they would have accepted. But now FCP suspects some foul play and as someone said, is cracking down on abusers of their system so no matter how much pleading, you will not get a new part. If the part you sent was fine then go ahead and pay the shipping to get it back. Cheaper then a new plate right? Its a new plate you sent off right? You seem to be wanting someone to agree with your delusions at this point, I can't think of any reason to keep posting otherwise.
Your argument that they are stiffing "good loyal customers" to save a dime is outlandish and like I said, a loony conspiracy theory. There is no world given your situation in which you are right. Had you played your cards differently this wouldn't have happened. There is nothing predatory about FCP Euro or their business practices and I'm surprised they haven't flat out stopped replying to your messages. They have no intent to sucker you. There are no trends or nuances here. No one else has seem to have had this issue by your own admission yet you cling to the fantasy that FCP wants to swindle you out of your money. You have no evidence to support this and there is nothing more worth arguing.
Have a nice day OP, I am also done here.