cpa network

Can someone tell me what a "duplicate" lead is? My idea of a duplicate lead is having one person fill out the same offer. In most cases, it does not double your income.

I was taken off of a offer this morning because of duplicate leads. I had no knowledge of these leads.

It is baffling to me. The offer is cash4gold. It's a lead generation form where the user fill out a form to receive a packet in the mail to get cash for their unwanted gold. I never ever sent the same lead to that offer. This sh*t is pissing me off.