Original post: https://www.reddit.com/r/DarkNetMarkets/comments/5d3yn0/vendor_compaint_heimerd0nger_shorted_me_quite_a/
tl;dr: HD0 shorted me more than 50% of my order by weight. He finally got into contact with me and swore to make it right (I said I wanted a refund, he said he would send me a bunch of chems from his stash). We chatted back and forth, then he went dark as soon as money left escrow.
BE CAREFUL HERE. He was incredibly polite and effusive. If he had refunded me for my first order, I likely would be a repeat customer.