I had never heard of this "extra item" requirement for any purchase of any item in the US.That’s definitely possible but it’s just a bad client record I guess. But to honest if you are not an established client you won’t even be offered that option to get the MP since it’s such a popular bag.
Before they limited the “extra items” as fine jewellery at one stage which is impossible return for my Pochette Métis order. Now they have so many stock and they don’t even do that anymore as it’s readily available.