I am a bit confused with so many replies. Forum is not allowing me to post fast !!! What I understand is I need to contact the merchant. I bought it from Cloud Mining Website. How do I contact them ? I tried to send 0.02 BTC, whereas 20 BTC has gone from me. I can not afford this loss. Need to get it back at any cost. In PayPal, CreditCard there is an option to revert a transaction. Why dont we have it in Bitcoin ?
so you have 20 btc to spend and don't know you can't just reverse the transaction. then you compare to paypal and credit cards?
"Why dont we have it in Bitcoin ?"
you're a troll. go hide and die