Customers buying after item has expired?

[utahscots]

I'm having a problem with people being able to make a purchase after the date an item has expired. I can't understand why this is happening as I am not able to replicate doing that myself.
Suggestions? What is going wrong here?
Maggie

[E-junkie_Guru]

That should not be possible. Which product of yours is affected, and how long after the expiry passed did they purchase it? If you'd rather not provide details here, feel free to email us or use the Facebook Messenger live chat box you'll find elsewhere on our site.

BTW, note that all timestamps on our platform (including expiry dates) are Arizona time (MST / PDT / GMT -7).