Affiliates bug - After adding 1 subscription, 4 credits were given to the affiliate

We created 1 test subscription where the user signed up for our $20 plan. The affiliate account was given 4 credits for the $20 commission. See details below that show up in affiliate account.

Managed Affiliate screen shows the following:
May 15, 2014 11:07 am Paid Membership: Starter Plan 20.00
May 15, 2014 11:07 am Paid Membership: Starter Plan 20.00
May 15, 2014 11:07 am Paid Membership: Starter Plan 20.00
May 15, 2014 11:07 am Paid Membership: Starter Plan 20.00
May 15, 2014 11:04 am Signup User: Hector Torres 0.00
May 15, 2014 11:00 am Unique Referral http://www.idealocity.com/atp/ 0.00

Period Balance 80.00

Why is this happening? Please help us resolve this.