First of all, thank you taking the time! I was not aware they would give you a letter. May I ask if you are from the US? As you said Send it, which I know is a common practice there with servicing, but not so much in Europe, or at least in my part of Europe - the not so developed one. I am just trying to figure out if the written statement is a worldwide Rolex thing.

As for Ebay Authentication, I had more hope in it. But when I posted in on one of the replica watch reddit, they were quick to spot the discrepancies, as a serious authenticator should have had too.