Zkribbler
Deity
Can you use a coupon on the day of the printed expiration date? I'd always assumed the printed date was the final day of it's validty, instead of the first day of it being expired.
I would opine that the coupon is still valid on the printed day. In contract law, if a provision is uncertain, it is interpreted against the party causing the uncertainty.
If they wanted it to be no longer valid as of a certain day, they must make that clear, e.g. "No longer valid on 1/1/17"