1

I made the payment for reactivation of Avast pro but I am still unprotected as Avast has not renewed it and there seems to be no way of contacting them to renew or send my money back.

2

You can find your license(s) in your avast account or you can it send again to you through > https://www.avast.com/resend-license-paid.php

It is really easy to contact avast (ticket) > https://support.avast.com/support/tickets/new