New Apple Watch purchased from Amazon will not pair to iPhone, how do I return it?

I bought an Apple Watch thru Amazon and it arrived this past Sunday, July 13,2025. It does not pair with my IPhone. Since I can use my IPhone I will continue keeping it but return the New Watch. How do I do that?

[Re-Titled by Moderator]

Original Title: I ordered a new Apple Watch thru Amazon this past Sunday and it won’t pair with my iPhone. I would like to return it. Do I just do that thru Amazon?