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For first, I'm sorry for hear that. IDK why you've a trust for an account which rank Full Member. Those are an offer for fligh-trade via escrow, Then if asking about your problem to support of DIM, They are have out hand for that. It is totally your mistakes.
Btw, you just had lost 0.0195BTC not 0.195
Here is an information for report scamer, there is no guarantee of your money back, but scamers will be taged red trust :
thank you so much! I didn't really know how rankings worked, but I have started learning a bit more. Just corrected the amount as well!