Guidelines: The marketability of certain segments of the population tends to be different per geographical location. It makes sense for a company to try and advertise to users in a location it already services. It does not make sense to sell or market higher-end, premium, luxury items to impoverished developing nations. While it may sound discriminatory, it is just a fact of life. That's why users from developed nations such as the United Kingdom, Canada, the United States and others are preferred.
OGPlanet also tends to avoid the "farming" of user accounts as a way to generate Points. That's why it has strict measures in place to make sure that each individual account is tied to one real human person.
Another item to consider is the level of participation of the referred account. Accounts that are created merely for the purpose of creating referrals are not good for the sponsors, advertisers, OGPlanet and for the referring account.
If done organically, referrals have a multiplier effect that can help boost the number of points you have.