Last year when the RCR numbers on returns were wrong the IRS just reduced the refund by the amount claimed. 

I suspect they would just do the same this year? 

Either way I am not getting into this with client. I offered to log in using his info if we wanted to give it to me and instead he just gave me the numbers from his account. 

There are plenty of people that didn't get all 6 payments for one reason or another. I'm going with what he told me. 

Even if I have to follow up later, I'll just bill him for for it. Need to finish up and move onto clients that generate a bigger fee.