Hello. I got an email the other day that my automatic renewal is coming up next week. Well, I no longer have the credit card that was used last year, so I want to update the info with a new card number. When I edit the info, it tells me to hit sumbit, but when I do that, then it takes me to another screen and tells me to enter my email and password again. After I do that, then it tells me my email is invalid. What’s going on?!?
Submit a ticket: https://support.avast.com/support/tickets/new
Done. Thanks!
Please keep this information in mind 
The process can take 7-10 business days to complete
Avast Team Member Snip> “Please note that we answer the tickets by last activity.
If you send a follow-up message almost everyday, your ticket will appear to us as a “new ticket”, which will cause further delay”
You’re welcome.