Don't try because those withdrawal request wont really be confirmed at all and consider those bitcoin you do have on that site are lost forever knowing that HYIP sites are 100% scam and I'm sorry for your loss and hope this would be an eye opener for you that theres no easy money here on bitcoin world.Put it on your mind that all things that promises huge profits or returns are all scams so that you would able to avoid again this thing and wont loss your precious bitcoins.