vpn Authentication message

I signed up for the vpn service a few days ago. I try to log in with my login info and i get a message of authentication error try again. I've tried a few times, at different times, i've change my password, and i get the same massage. I can login to my account and see that the payment has been taken. I get emails of log ins but the Extension says to log in. I've restarted the app on the desktop and restarted the PC.I've uninstalled and reinstalled, same issue.