I have Avast Premium Security. I was on automatic renewal, but I got an email sometime in September saying that my renewal had failed because my payment information needed to be updated. So, I went into my account and updated my payment information, but still received several emails subsequently telling me that my subscription was going to be terminated because I needed to update my payment details. I even contacted Support by email several times in the meantime but they were no help. I told them in one email that I was seriously thinking about going to another virus protection program, but they had no response to that.
Then, sometime in the wee hours of October 14, I got an email (one for Premium Security and one for Passwords) telling me that my subscription was terminated due to my failure to pay. So this morning I had to reapply for a “new” account, after being completely unprotected during the night hours. I’m not happy, but I did pay the fee via PayPal, which may keep me from falling through the cracks next time.
Bottom line is, Avast is extremely difficult to get hold of by email. I haven’t tried calling, but in most cases, I hate calling any company and being put on hold interminably.