Product Overview
This is an add-on for upgrades/substitutions/unlisted products such as springs/ expedited shipping /spare parts/ legal fund donation/ paying for the price difference between 2 products when the customer has decided they'd like a more expensive option and not cancel their order etc.
This is not a "mystery bag" or a "secret handshake and wink" sort of thing, it's just a way to pay for things like overnight shipping, that we don't have a product listing for.
Please select the appropriate amount and let us know in the order comments what specifically the payment is for so there is no confusion on our end about the payment.