Can I take your number? paroxetine for premature ejaculation forum Mr D’Oyly said supermarkets are taking steps to counter the efforts of bargain hunters, as well as the more serious fraudsters. Valassis checks coupons ahead of their release for errors and advises supermarkets on how to make their coupons difficult to copy. “Making sure the right checks are in place at the point of sale would be a big step forward,” he said.