The "bonuses" when buying TC from paypal were from redeembot. You have to PM the bot saying you bought TC and you have to provide proof. I don't know if it's around anymore.
with that u can buy a 4000 booster .. omg, thats easy money, but if u ask someone for make u a price for 400$ a 10000tc booster, thats awesome richest tbasher on the world lol