discount offer won't work

[id]

I am having problems with the SUMMER2040 discount offer it says: coupon not valid , and the last email sent didn't specified it had to be any type of book... does anyone know a trick for this?

[mypublisher]

Our SUMMER2040 promotion expired on Aug. 22, 2007 and is not valid at this time. Sign up for our mailing list so you can be alerted when our next promotion begins.
MyPublisher