Unfortunately I have seen this happen many times.
It is so important to do your homework and research someone before you do a transaction.
When a deal is too good to be true, it usually is. That was a very low price for a proven fire.
I knew someone who paid for a ball morph(great price!) and got a corn!
Going to the BOI is good to alert others but the reality is you should have started there in the first place and it could have saved you some grief.
I am not blaming you so please dont take it that way, I am just saying that you learned the hard way.
I also got a misrepresented animal when I first started buying morphs, mine was a sex mistake. I learned too deal with people with positive reputations and do the same and you will be better off.
Sorry this happened to you, but unfortunately there are alot of these kinda people out there.
Hope you can resolve this in a positive manner.