Hi, how can I help you?
HI there, I just tried to use a promo code that I received 8 days ago but it's not working; it's invalid the site says. Can you help me with that?
I'll see what I can do. Can I get your full name to pull up your account?
Sure.  My name is Albert Sanders.
Thanks. Normally our promotions only last 7 days, but I'll check the system to see about this one.
Thank you for checking!
Unfortunately the code is now invalid, but I might be able to fix this for you. Do you know your membership level?
It's Guest level.
Okay, it looks like there's nothing I can do to extend this promotion. I'm sorry about this.
Oh okay, well thank you for your help. :) That's all I needed help with.
Of course. Have a great day!