My subscription is up for renewal and I cannot find out how to step up from Basic/Starter to Professional.  All I seem to be able to find is to renew my current, now ended, basic subscription.  I am now locked out of my team(s) until I renew but am reluctant to renew on Basic/Starter in case I cannot upgraded to Pro once done.

I was on the old 'plan' which included what is now only available in the Pro hence my need to upgrade.

HELP!