Here the Referral Points Reward Rate :

Tier 1 : 500 Pts when your Referrals reach 1000 Pts (USA, CA, GB, AU)

Tier 2 : 300 Pts when your Referrals reach 1000 Pts (DE, NL, SE, DK, NO, CH, FR, HK, IE, NZ, JP,  SG, ES)

Tier 3 : 100 Pts when your Referrals reach 1000 Pts (OTHER COUNTRY)