To give you an example (if the above isn't clear.)
User X buys User Upgrade #1 at $20/mo on Jan 1st.
On Jan 5th, the admin raises the price of User Upgrade #1 to $30/mo.
When PayPal auto renews the upgrade, will it charge the old price of $20? Or the new at $30?
I'd like to raise the prices of my user upgrades but I'm not sure how the system will treat the renewals.
Any insight would be helpful so I can adequately inform the membership.
(EDIT: My install is XF 1.2 - if a mod could change the tag, thanks!)