Thanks anyone for the answers.
I don't understand one thing.
They (the support of the site) told me that: "You can't withdraw your deposit, its included in daily accrued interest.
You can withdraw just your profit."
i don't understand...can anyone make an example?
In simple words, your deposit to the site will only be used to generate interest but it can never be withdrawn. What you can withdraw is the interest generated from it.
Say for example, if you deposit $100 and you receive 5% every day, you will get $5 every day that you can withdraw the money at any time (until the site vanishes), but the original $100 will stay in your account forever, generating interest for you every day (again, until the site vanishes).
its hyip, but what they offer too big 5% everyday. maybe just for one or two weeks and ending is scam..
p.s. hyip always scam