I am having the same problem. The instructions you have provided do not work. I click on "Manage Family" and get stuck in an endless loop of trying to upgrade but I cannot upgrade.
This is unacceptable. You have cut access to all our accounts on our mobile devices. THIS IS URGENT.
This is massively frustrating!!! I have a cc that was jeopardized and caused my account to become inactive. I updated the payment info but it said there was an error and it was unable to force the payment through. No support at all, I can't call anyone, message anyone to resolve the issue. I've been extremely satisfied with LastPass, but this issue is a big deal!!!!!!!!!!!!! Please help or I will be finding another PW manager!