Okay so in desperation to get a BPOA I made a sacrafice. 

A character named "****" from the guild **** offered to sell me his bpoa he had listed on Auction for 80 mil for 67 mil (saving myself 13 million tunar). 

I scrounged up the tunar from guildees and bought the bpoa off of him on his banker toon (******) 

So I purchased the BPOA for 80 million, expecting ******  to return to me 13 million. Immediately after purchasing the item he said "nvm sry" and immediately logged. 

I reported him...but is there anything I can do about this? 

Please do not post players names or guilds as part of a Customer Service issue. All in game problems and issues need to be taken care of via the in game reports. The forums rules prohibit discussion of CS issues.

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I guess we need to make a website where we can blacklist certain players considering we cannot post them on forums.

Since the EQOA are provided for the players by SOE, then the rules have to be followed: the rules state that:

Furthermore, you may NOT:

• Use the official forums to debate private issues. The official forums are for all EverQuest Online Adventures players. If you have an issue with other players or groups, deal with it outside of the public forums in a private space.
• Make posts seeking or giving feedback about Customer Service resolutions. All requests and feedback about Customer Service issues should be handled through petitions or emails using the Knowledge Base (www.station.sony.com/kb) and selecting Email Support.

If you have an issue then it has to go through the in game support options or through the Customer Service venues already posted.