If a purchase is eligible for more than one offer, do they stack? I have a $9 off Paramount purchase. My $9.99 purchase posted last night, and I got multiple emails congratulating me on using my offer - one of them refers to the $9 credit which I'd expected, but the others refer to 10% back on streaming offer. Neither offer posted to my account yet. It's not much money, but I'd sure prefer the $9 offer to the 10% back if only one applies, especially because it's good for 2 more months. (of course it would be wonderful, and would wipe off my whole purchase, if both apply)