1. You are the one accusing a business of being sneaky and shifty with no proof.
2. All orders have records. You can't charge a card an amount without going through 3rd party verification (usually 2 companies). That 3rd party will always side with you on a dispute if you state you didn't order it.
3. Shipping is done by a 3rd party and by weight, if need be. There is a paper trail by that company as well. It makes no sense to add $250 of protein, which costs significantly more to ship, only to have to pay for it to be shipped back when you dispute it.
4. You don't need to prove it. You can call your CC company and state I didn't order this and I don't want it, show proof of shipping and they refund you the charge. Then NP gets sent a letter stating you are disputing it while the CC company gives you your money back.
I'm not upset, I'm mildly annoyed that someone would come on here and post to the public a company is being dishonest by trying to sneak items into an order. Maybe next time, you could ask whats going on before implying they are being sneaky and shifty. Email customer support and state you are having issues so they can look into it.