Affiliate Programs Affiliate Paypal Question

[clemzonguy]

I just got paid via Paypal from an affiliate program however there was a $0.00 fee assessed by paypal for the payment I just received which was around $100. This is the first time this has ever happened to my knowledge. Is there some reason why?

 

[Luckystar]

What do actually mean?
What fee does the paypal charge for?