ATT Referral Program - www.attreferrals.com

I have referred two of my friends under ATT referral program which states that they will give $50 for internet service and $25 for any service referral. My ATT referral account shows my friends referral entries still they claim that they are not referred, the referral code is not used, they registered after taking the service etc and different reasons just without paying any amount.

Till now I cant understand how the entries gets added to my account if I haven't received them and most worst situation is I have ordered for services for my friends using my referral code in ATT website and they state that I have not used referral code which is shock to me.