How to manage my Finmail Mailbox Subscription?

Once​ ​you​ ​have​ ​logged​ ​into​ ​your​ ​Finmail​ ​Mailbox​ ,​ ​you​ ​can​ ​easily​ ​manage​ ​your​ ​subscription​ ​by​ ​accessing​ ​the​ ​Upgrade​ ​page.