Can't upgrade Unity personal editor to Plus

I have subscribed for the Unity Plus plan for 1 seat. I activated the seat and successfully assigned one user in the seat. Everything seems fine in the website dashboard. But I can’t upgrade the editor.

I don’t know actually how it is done. In the “Manage License” section, I tried “Check for Updates”. It says the licence is updated but my editor is still showing “Personal”. I tried “Activate New License”, it says that my license is expired yesterday(4th June 2017), but I just paid for it today(5th June 2017)!

It’s very urgent. Please somebody help me out.

Note : I tried the above steps logging into the owner account and also the user account. Both attempts were failed.

Did you try opening the editor then there is a spot to enter the license that you got in a email so the first screen you see click at the top manage license and enter the license then when you start project the editor will be in black that lets you know your in plus not personal if this dont work go to website account and mange seats and clear seats then try again in editor manage license under the email the account was setup and enter your license i hope this helps if not you will have get with unity.