We see these posts daily. Lots of confusion out there. It is a simple fix.
Remove the word "expired" from plan and put in something more intuitive.
Say "Promo Plan discount" or "2016 promo" or something.
Would save alot of grief
eg:
https://productioncommunity.publicmobile.ca/t5/Plans-Add-Ons/Run-out-of-Data-why-in-the-second-line-...