Earn a $10 Credit Through Prime Stampcard: From June 16 through Prime Day, members are invited to explore the perks of membership to receive a $10 credit toward their Prime Day order or future Amazon purchase. To participate, members collect a stamp for completing each of four Prime activities: stream Prime Video, listen to Prime Music, borrow a Prime Reading or Kindle Unlimited book or add one to their library, and make a Prime-shipping eligible purchase. Members can visit https://amazon.com/cer/stampcard/home to learn more.