GPTBank is the professional way to be paid by ref-back offers. You get paid to click on ads like PTC sites.
GPTBank guarantees to earn money with PTC sites whether you can't reach the minimum payout, even you have 1 click! You'll get paid up to %140 (mostly %70) of what you earn for GPTBank (based on standard referral earnings). Also you'll get up to %15 of your direct referral's earnings.
Payment requests can be made every day and are processed through AlertPay within 3 days for standard members and instantly for premium members!