Yeah, I find CPG to be on the top shelf of the rebate companies though, I think they're pretty good, and their tracking site is nice and it's easy to understand.
I have two Kingston rebates going with them for $45 total, two CompactFlash ones mailed in the same envelope for $30, and one SD rebate for $15. Both have processed for $15 and $30 and everything looks well, I think the key is that you have to mail them in the same envelope. It shows it as being the $15 Kingston promotion, but the rebate amount listed is for $30.