http://bonyg5gd2cszplkckqffzfcefig5jldgwt36gm2jqdaezlgs3nrfhjid.onion/bible/content/bible/darknetmarkets/making_a_purchase/index.html
If you, by any chance, make a mistake when providing your address in the order information, let the vendor know as soon as possible. Remaining in escrow or using Multi-Sig is a good way to keep from vendor exit scams. If you have already entered your public PGP key in your profile settings (which you should absolutely do), it is not necessary to include it in your messages to the vendor.