edit: again, not defending their packaging skills here.
Ultimately "YOU CAN'T DO THAT" just doesn't mean you CAN do that as long as the letters are big enough bold enough or red enough. It means YOU CAN'T DO THAT.
You cannot offer goods that don't work on a website where you anticipate people paying with their paycal mastercard visa or amex and expect them not to exercise terms that must exist by law because the alternative to someone doing the easy thing and yoinking their money relatively cheaply back over the wire isn't the incompetent OEM keeping the money its waiting for a very expensive lawsuit wherein the customer takes back not only their $99 but the $5000 it cost them to collect their $99. If enough people do that ultimately they ruin you and people come to take all your tinker toys and auction them to pay your debts.
The actual alternative is to have an actual signed contract with prospective "developers" for access to equipment. There isn't a blurb you can put on a website that will serve.