I have the same problem with rewards and Ebay/Paypal. Not sure whether
Ebay, Paypal, or both are the root cause given the combo could
disorganize a one car funeral procession. Amazon has no trouble
advertising my rewards point at time of checkout.
If things go well, you probably can fit the expected head tap in 80
characters. But if not 80 characters is never enough to meaningfully and
specifically warn those who may follow.