I  wanna tell you the "www.PAYXERCOIN.com" procedure.
At first you invest, for small amount of money, they will pay you your money back by its profit. for 3 days, they will pay you 67% profit. after you trust on them, they will tell you that you have a "BONUS". they will say that you can withdraw all your money. after you can't, you have to ask their support that what is happening. they will tell you that you have to pay "TAX"! which is 15% !!! if you can't pay, they will help you (!!!) and give you a discount. after paying that, you wanna withdraw again! but it is not possible again! they ask you to give them a bank account. you give them but they won't pay you! they made a bank which is : "www.craystonebank.pw". they put all your money there. but again you can not transfer! you ask why? they will tell you that you have to pay for getting some certificate for money laundry! this amount is about 10% of your money! you can not pay them, so you will ask them to pay you in other way such as paying your money in bitcoin! in this procedure they ask you to pay COT (Cost of transaction) which will be about 1000$ for each 10000$ ! after that they ask you to create a blockchain wallet. they ask you to give them all of its password and wallet ID. so she/he will import some addresses in your wallet. you can not withdraw again! why? because you have to pay for having  private key! so you can not have your money again!
be aware that this procedure will takes long about 1 month. they will apologize you in every step! so polite!