How long does it takes to replay for refund?

How long does it takes Avast to answer to a refund ticket?
Because i don’t want the product and i missed the mails for a day about canceling the subscription…

forum search > refund

So it’s gonna take a month as i search the forum and people say about support!!!

Have you filed for a refund:
https://support.avast.com/en-us/contact/sales_refund/