Click here to link your Capital One Rewards account to your Amazon account if they are not already linked https://amzn.to/2PWiRwv
you often have to wait 24 to 48 hours after linking your rewards account before you can "activate" the offer. Check the link in the next step after a few days for eligibility.
Click here to activate the promotion on your Amazon account (eligibility will vary) https://amzn.to/2Y8munl
Add $80 or more of eligible products sold and shipped by Amazon.com to your shopping cart
Proceed to checkout & select your Capital One Card as your payment method
Select the amount of Rewards Points you would like to use for the purchase (must use at least 1 point)
The $20 off $80 discount will be applied to qualifying items at checkout