Hi Bonita, welcome and thank you for your question. My name is ***** ***** I am glad to assist you today.
I am very sorry about your issues. I believe you might have upgraded to the "paid" version or might have subscribed to its services causing the charges that you have incurred.
Have you tried to access your account with Avast to stop or discontinue with your subscription?Please let me know by replying to me here so that I can help you further.