This is happening to me since the update as well and support won't
respond to my reports. I still login with Facebook account but can only
access sale prices when logged out. On the app I've noticed some free
apps showing with the $ currency but paid...
I've been struggling with this as well since the Meta account update.
Haven't found a solution on any forums and support haven't replied to my
reports. Was considering a factory reset but since other people are
having this issue I don't think it will...