Yes , sometime win sometime lost all . what Issue i can tag ? Lost , Donation , gift or income ? If Gambling site sent BTC back to my wallet and less than i send to them .
Exp1. Send BTC to play Gambling about 0.5 BTC . but refund back to my wallet only 0.32 BTC.
Exp2. Send BTC to play about 0.5 BTC. But refund back to wallet about 1.3 BTC.