Do not buy anything from these spammers. Once you buy they will keep sending 2-3 SMS every week. Un-subscribe option does not work. Spammers are the lowest form of entities in the internet and Zivame losers belong to that category.
I tried to reach out to them via facebook & twitter, but they do not have a decency to reply either. It appears that in India anything goes, and any such shady businesses can easily cheat customers.