Yesterday, I called their customer service line and after a very long wait got to talk to someone. At this point both she and I got confused. She interpreted "20x everyday points" as "20 bonus points per dollar spent" and credited me 2680 points. I didn't quite realize what she'd done until this morning when I checked my point balance. So once again this afternoon after work, I got in the 30-plus minute phone queue to talk to an agent. He could see the original purchase and the extra points I got yesterday, and agreed that I was actually due another 22,780 points (1340 base everyday points * 17, after the original 1x points and the 2x points I got yesterday) and credited my account.
That's about an hour waiting around on the phone, but the points redeem at 1000 points = $1, so in the end I get around $25 in store credit that I know that I will spend for spending that time on the phone. And it wasn't totally wasted time because I was able to work on the SFSFC meeting minutes while waiting.