They did the same to me for the following two trades on bitcoinmarket.com :
Buyer ID Trade ID Currency Pair Price Amount
5810 2588 BMBTC/PPUSD 25.9900 11.0000
5810 2493 BMBTC/PPUSD 26.9900 10.0000
After I confirmed receipt of payment, within a couple of hours of receiving the notice from paypal that the payments were disputed I emailed the admin at bitcoinmarket.com but never heard back. I received payment in the evening (US Central Time) and 1 hour later the payments were disputed. The reason for the dispute is a claim that the transactions were unauthorized.
Paypal already closed one of the disputes (in his favor) without even waiting for my response. Their initial email indicated I had 7 days to respond, and had to do so by fax since each transaction was >$250 USD.
I wish I would have known about the feedback section on bitcoinmarket.com! If I had seen the users past history I would have been more cautious...
his username is petraki85
paypal address is email@example.com