Agree with trishseo. If it's too good to be true, then it usually is... not true! If you want to get into their service that's up to you but there are plenty out there that might be able to do better than them and without resorting to scammy approaches.
Its scam, but you can go ahead if you dont feel it is scam smartly. I mean if they are offering some thing free, then go ahead, and when you think they are trying to do something un expected, then just give up. its so easy.
It might be true, but I suspect the domain is linked to Google sites it might have a co.in name but you can't do much with it, as in add files or edit the pages until your upgrade