Subscription twice as much as charged in 2020

Hello Michelle,
Thank you for contacting AVG Community Support.
We regret the inconvenience caused. We'll check and help you.
As it isn't advised to discuss personal/account related info here, we've sent you an email with further details. Please check your inbox/spam folders to find the email and use it to get back to us.
Thank you and keep us updated.

I have just noticed I have been charged 79.99 for one year AVG Internet Security (Multi-Device)
Number of devices: 10 Devices
Subscription period: 28 September 2022 to 12 October 2023

In 2020
AVG Internet Security (Multi-Device)
2-vear subscription, 10 devices, then billed annually

£35.76

This is over 4 times as much!  Surely this cannot be correct. How do I call customer services?

Hello Michelle,
Thank you for contacting AVG Community Support.
We regret the inconvenience caused. We'll check and help you.
As it isn't advised to discuss personal/account related info here, we've sent you an email with further details. Please check your inbox/spam folders to find the email and use it to get back to us.
Thank you and keep us updated.