I got scammed by 0,04 btc

and after a lot of emails (most without any reply)

I didn't receive any info for my BTC_B pending.
I just entered today in my account and nothing it's changed. I can't understand how people could use this exchange with a proven scam behavior in the last years/months.
If it was 0.04 I wouldnt care becase the ammount i got scammed is several hitcoins, but still it is not good for an exchange like this to scam their users