Customers will call after the sale asking to proactively apply discount codes. Affiliates will call after the sale asking to proactively apply discount codes (

Customers will call after the sale asking to proactively apply discount codes. Affiliates will call after the sale asking to proactively apply discount codes (so they get credit). Customers will complain if a discount code has expired. Customers will cancel, return and re-buy just to apply discount codes. Discount codes suck.