Upgrade pricing not working online

[bdm]

From @dan in the thread i posted

@dan

We switched from a preorder system to a much more sophisticated ecommerce system some months ago, and this is a deep, lingering bug from that switch. Specifically, from some of the folks who ordered on the old system and are trying to upgrade with the new one. It’s not easy to fix, unfortunately.

If they could fix it easily, they would.
Considering it is an open thread in the Support section i assume it is a far larger problem than it seems on the surface.