OP go fuck yourself. It doesn't matter what your fucking conversion rate is. What matters is the life time value of the customers. If they're legit clicks no one cares, if they're shady, which they must be, you'll be fucked off it no time, "diluted" or not.
Think about your retardedness. Do you not think they'll see the conversion rate on an hour by hour or minute to minute basis? Do you think they'll go in and say:
"Hey looks like after the initial sign-up, barely anyone converted from this bloke. Quick check his ctr for the month.
"Don't check when the leads came in, don't check whether they came in in bulk, that doesn't matter.
"Don't check and see if the cards were refused, or whether the people actually exist.
"Don't check that particular day or hour. Don't even check how they got here and their usage patterns once here.
"All I care about is clicks signed up to teh email submit on page 1 over the last 30 days... That's like teh most powerful metric for for us offer runners."