Gb --- the retailer is supposed to give you a cap (if he even has them) when you purchace 5 MX2's ... it even states it on a sticker on the underside of the lid when it is open.
... the other side of the coin, is that some retailers are limiting how many you can buy from them to 'one or two', because they claim they are hard to get ...
BTW --- SWAG is usually limited to CAO's website, and you send in so many bands with the answer to their question ... and BINGO!
Stuff you get at the retailer is usually called 'promotional' merchandise ... 😉