The idea behind Loyalty Points is to reward consistent supporters of the game equally, regardless of how much they contribute each month.
There is currently only one way to earn Loyalty Points : by purchasing credit during a given month.
You can receive a maximum of 1 Loyalty Point per month.
The smallest payment possible to the game, which is 10 USD, is enough to accrue 1 Loyalty Point each month.
The options available to you are located here in the Credit Shop.
Loyalty Point are reset to 0 after the current year ends.