iam one of the victim of it. first time they asked me to deposit 10 dollars to enable withdraw. and now they asking for 25 usd for unlocking my account. what can i do now? please give me a suggestion.
Sorry for your loss, now you can consider those 10$ as investment in self-education on how to not be scammed this way (never deposit something in order to withdraw something). Despite the fact that such scheme as old as the hills, some newbies still fall into it. You're not newbie anymore and you can further learn how to avoid scams of all kind. I suggest you to go through this thread
List of (un)known methods scammers user to scam users with honorable mention and learn how to recognize a particular pattern. By the way, your case is the very first mentioned:
Deposit before withdrawing It mostly happens in gambling section but I have seen people coming up with currency exchange service and try this method.
The trick is very easy. You will see an ANN or service announcement of a new website out of nowhere. You will be given X amount of free BTC to try their website. You will spend those fee BTC and play games in their site. Instantly you will find yourself very lucky. You will make Y times of the X and once you will request a withdrawal they will ask you to deposit Z amount BTC. Once you will contact the support they will give this explanation that the primary deposit is required to verify your account. I have seen people to be trapped and lose their money. Do not send any single satoshi to anyone who will come to you with this method. Stay away, you have been warned.
Example victims or offers:
Stay away from Fake Coinbase giveaway ! (accusation, send btc first)
be aware. exmofit.com scam website (accusation, this time it was a fake exchange)
In progress