Thank you for contacting Acme.  How may I help you today?
My promo code won't work. It keeps saying that it's invalid.
Oh, I'm sorry to hear that.  Let me see if I can help to clear this up May I ask your full name, first, so that I can take a look at the account?
Sanya Afzal
Thanks, Ms Afzal.  Our promotions typically last for 7 days.  Do you know if your code was issued more than a week ago?
Really? I got it 9 days ago. I didn't realize they only lasted that long.
Yes, I'm sorry to say, they are limited-time offers
That's all I needed then
Okay.  Have a good day, Ms Afzal