"you agree to pay Apple a 27% commission on any purchases made when users click those links, for up to 7 days after the link is clicked." So if the publisher s

"you agree to pay Apple a 27% commission on any purchases made when users click those links, for up to 7 days after the link is clicked." So if the publisher says, "Click here for a renewal reminder and a 10% discount" and then sends a renewal E-mail on the 8th day, they're in the clear.