But they do not return the principal !!!
so you mean if for example i invested 1btc on it i will get .48btc as profit but i will not get my 1btc principal investment? isn't it clearly a loss on my part for only getting .48btc with my 1btc?
Yeah that makes no sense if they don't return the principal that's a clear 52% loss. If they allow the principal to gain another profit n number of days then for only ROI it will take more 10 days(20 in total) so you will actually profit in the 3rd cycle, i.e 30 days. But anyways the site seems a clear scam that will run away in 1-2 months.