Is it legal to use a hylozoist card and just leave the mobs you spawned? I was killing at Hill Winds and some noob crusader (named Grappa) thought it was "funny" to use the card to spawn random mobs, and, well, it spawned a Eremes that killed me TWICE.
# Do not break DB/BB randomly anywhere/everywhere
Do not break DB/BB near a dungeon/city entrance or maps for low level players. Do not use DB/BB to kill other players. (DB=Dead Branch, BB=Bloody Branch). Transformed monsters by polymorphic abilities also obeys the DB/BB rule. Take care of your transformed monsters, or cry for help immediately on @main if the transformed monster is too strong for you to handle alone (including if it is in town or no-exp loss map).
I'd imagine it would fall under that. The usual solution is to send in a Support Ticket from the main website.