The ad has been pulled the online sales flyer. Many people are reporting that the stores are refusing to honor selling the paypal cards along with the ECB. One person at least is reporting that she was unable to even use her ECB.
If it's only one person, I wouldn't be too scared, she prob tried buying under $50 of eligible purchases or something, and store empolyee was giving hard time... If a bunch of ppl can't use their 50ecb, I'd be more worried. (but CVS told me that they can accept ECB's after they expire, which would be a manual thing, so even if don't work now, they should work in a month)