Can't update bank details because Subscription missing

Hello Pieter,
Thank you for contacting AVG Community Support.
We understand that you wish to update banking details and have difficulties.
We are really sorry to know this. We'll certainly check and help you out.
Could you please contact our AVG billing & sales team using this link: https://support.avg.com/support_sales_chat?l=en and they will check and help you.
Thank you.

Hello Pieter,
Thank you for contacting AVG Community Support.
We understand that you wish to update banking details and have difficulties.
We are really sorry to know this. We'll certainly check and help you out.
Could you please contact our AVG billing & sales team using this link: https://support.avg.com/support_sales_chat?l=en and they will check and help you.
Thank you.

Hi. I need to change my banking details which have changed after being scammed recently. 
However, I can't get further than "No subscriptions here yet . . ." this in spite of being an AVG user for many years. Trying to get anything done on your website is an exercise in futility and doesn't get me anywhere. BTW, I've noticed a number of similar complaints here on the Community.
Please give me a way of contacting you so I can change my banking details.
Thank you very much.