Join the program with referral. Based on the number of levels of referral you are under, you will have a discount on purchasing the token. If your referral is on the top, you will have 5% discount. Two levels referral will have 5% + 3% = 8% discount, three levels will have 10% discount. Any additional levels will have additional 1% discount. The maximum discount is 15%.
Besides, if the first three levels referrers are holding AUPC at the time of purchase, they will be awarded AUPC and ether as present. The first level will have 10% token and 5% ether of the purchased amount, the second level will have 6% token and 3% ether, and the third level will have 4% token and 2% ether.
The process is done automatically by smartcontract.