Well, at MY CC two $30 rebates printed out at purchase, for a net before tax cost of $39.99. Only thing is both rebates require the original UPC to accompany the rebate submittal.
The SC (sales clerk - we need more acronyms!) read through the rebates with me and said to just send a copy of the UPC with one of the rebates, with a note referencing the other rebate. It may work, or add a phone call when the first rebate arrives to prompt them for the other (which worked for me to get both my Tivo rebates from them).