Cannot upgrade to Creative Cloud All Apps

Hi there!

I'm trying to upgrade from two annual, monthly-paid subscriptions (Photography & Illustrator) to Creative Cloud All Apps.

When I tried to upgrade, I received this message:

In order to upgrade to a Creative Cloud All Apps, we have to cancel your current Creative Cloud Photography plan (one-year) subscription. Please click below.

I clicked on the button, and from there cancelled both of my subscriptions so that I could add the new one.

But, even now that my subscriptions are cancelled, I still get this error message when I try to add the new subscription, as if my old subscriptions hadn't been cancelled. It will not let me proceed past this point to checkout.

Any ideas?
Thank you,
J.W.