Is there a way EMC could implement a way were i can give someone a percentage off all things they buy off me. For example Person A always buys stuff from my shop but to reward the player for all the things he buys i give him 10% off all future purchases. Another example would be PersonA buys a hotel room from my res. Each player that buys a hotel room gets 5% off all items from my shop. So Person A buys a diamond normally would be 40r but because he has 5% off he gets the diamond for 38r.