Just an FYI - open the store and it says "Double bonus points" 6,900 points - *NOW THROUGH THURSDAY*.
I would note - now being Friday and the points not being on sale can be very bad mojo.
I'm not sure what your remedy is - taking down the promotion graphic would be obvious - I would suggest in the future not putting 'blank' ads anywhere and having hard dates - that way leaving an add up like this won't get you claims of false advertising.