As an Avast User, not an Avast Team member, I won't know about a response.
Whilst it might take a little longer given the current world wide issue with corvid-19, Avast offices as such are closed and some members will be working remotely from home.
Your response email should have a Ticket ID and that can help us try to push it if necessary. However, there may be a delay (given what I have mentioned, but I can't say how long), but it should be processed.