There are no monthly fees. Instead you purchase credits to perform important actions. These credits are cheaper the more you buy.
2,000 Credits At $24.00 ($0.01200/Credit)
5,000 Credits At $49.00 ($0.00980/Credit)
12,000 Credits At $99.00 ($0.00825/Credit)
30,000 Credits At $199.00 ($0.00663/Credit)
60,000 Credits At $299.00 ($0.00663/Credit)
A credit is valid for 1 year.