I received essentially the same post card as the OP - basically telling me that I hadn't met the requirements for the rebate. WRONG!!
I went to the rebate web site (
pentaximaging.rebatestatus.com) and checked my rebate status. Indicated that my $100 check had been mailed, but the "additional" rebate couldn't be processed. Interesting - there was NO additional rebate!!
The good news - I received the $100 rebate check yesterday.
I suspect there could be a "failure to communicate" between Pentax and the rebate processing company.