Avast not showing subscription payment -

Yesterday I upgraded the free Avast to Premium for a client. He had a pre-loaded VISA card which was not accepted so I used my own credit card.

All went well but there were no changes to the features in the Avast Free window.

I looked this up and the instructions said to download Avast Premium. I did.

Today, I have Avast Premium with a free trial for 30 days (no free Avast), and no record of payment anywhere - which means I can’t activate Avast Premium.

Ideas are appreciated! I’d rather not use the paid help service.

Thank you.

https://support.avast.com/en-ww/article/Sale-Billing-FAQ