This is unfortunately the case in many of these offers where the big banner number is used to entice people in, but the actual amount given is much lower. There is really no accountability to these types of over-promises as its not really regulated like a sweepstakes or other free contest. And providing no easy to understand rules keeps anyone from figuring out how to actually receive the top amounts.

Not sure that is what's going on in this case, but without accountability or penalties for bad behaviors this is likely to continue to be the case. No fine print necessary.