this is just a scam. don't waste your time and your friend maybe isn't a real good friend or can't understand properly what is a scam.
the low rollover compared with the bonus provided (no other terms like minimum odds) is a clear sign of scam - no one will give you free money . But if this was not enough there is not any "verification" to be made with a deposit.
I hope at least there was nt a ref. link once you get this magical suggestion...