1

What does that mean?:

In order to better assist you we have implemented a new support/customer care system. We therefore kindly request that you visit https://www.avast.com/support Avast Customer and Technical Support and resubmit your question.

You have stolen my money.

2

You may need to explain further on what you are talking about

3

It seems to me that a old links was used to submit a ticket or something like that.

Stolen your money?
avast is not a thief.
This sounds to me you agreed with auto-renewal and you where charged for it.

But as Graig asked, provide details.