The company said 50 million customers have signed up for ExtraCare and that it has made changes to its ExtraCare program based on feedback from bloggers. One such change was making more clear in store circulars the particulars of each deal.It has also curbed abuse that has risen from the electronic manipulation of coupons and stores that allowed "Superstacking," a way of using multiple cash-off coupons (say, using a coupon for $3 off a $15 purchase in addition to a coupon for $4 off a $20 purchase on the same order).
John Barron, director of relationship management at CVS, said the company works with "coupon experts" — shorthand for bloggers who are the most savvy about CVS policies and discounts — to educate shoppers about its program.
"While we do not monitor all shopping blogs and consumer forums, we do try to stay abreast of what customers are sharing through these outlets and make every effort to incorporate their feedback into our ExtraCare program," he said.
from statesman.com