I'd like to give XERO stars. My visit to B and N ...

I'd like to give XERO stars. My visit to B and N in Ann Arbor was totally unsatisfactory. I had an email text book reward, for making a many-hundreds-of-dollars book purchase. The reward mentioned no expiration date. When I went to spend it today I was told that it had expired. There was DEFINITELY no expiration date mentioned on the reward email. The store told me to call the customer service. I was sent to three different people on the phone and no-one was willing to acknowledge that the email was misleading and false. They refused to honor the reward which was for over $60. Amazon is getting my business from now on. They know the meaning of customer service!