It was 50% on mine, I paid through winpatrol's payment Merchant - Avangate B.V. - using Paypal.
Perhaps Bobs got too many friends
EDIT: Were there any local/state taxes applied ?
Any discount would be taken of the product price not any taxes applied.
No taxes applied here.
EDIT: A lot may have to do with the conversion rate at time of purchase, or as you said...Bob has to many friends
No such thing as too many friends.
From a merchandising standpoint, 50% of something is always better than 100% of nothing.