I sent my payment & return in 8 weeks before the deadline and although my check cleared on March 13, as of June 8, they still show that I haven’t paid. After receiving two letters regarding non-payment, I called and was told they would put a hold on my account for 90 days. I asked why they didn’t credit my account since my SSN was on the check and they responded that staff that processes checks don’t match-up a check with a return if it gets seperated. What a great system they have. I now owe $600.00 in penalites and interest even when I paid weeks ahead of the deadline according to my latest computer generated letter.