Can't pay for renew my subcription

Hello Hai.
Thank you for contacting AVG Community Support.
We will surely help you with it.
We have a specialized billing team, who'll give better clarity regarding this concern.
Please use the below link to contact them :
https://support.avg.com/support_sales?l=en
We extend our thanks for using our service.

i want to pay for my subcriptions, but i can't.
I'd like to change my subcriptions into 2-year AVG ultimate (10pcs) instead of 1-year. I chose all information for product, than input my credit card already, but the page answer it couldn't renew my subcription?

Hello Hai.
Thank you for contacting AVG Community Support.
We will surely help you with it.
We have a specialized billing team, who'll give better clarity regarding this concern.
Please use the below link to contact them :
https://support.avg.com/support_sales?l=en
We extend our thanks for using our service.