Delete my card or unsubscribe after free trial

Hello Lucia.
Thank you for contacting AVG Community Support.
We are sorry to know that you want to cancel your subscription.
We will certainly check and help you.
As it is not recommended to discuss your order/subscription details over this public post. Hence, we've sent you an email to your registered email address. Please check for the email and revert to us.
Thank you for your understanding.

My payment method wasnt renewal and I dont want to pay it, cause I dont need it now. I was ill, I didnt check my email and I forgot to unsubscribe before ending free trial. 
Now I want to unsubscribe, but my account shows me,that I have no active subscription, but you were trying to take money from my card. Twice. Now I have no money on that card, but I will and I wouldnt like to pay something what I dont need, so I am worry If you take my money for subscription, what I dont need.
Where can I delete my card or unsubscribe ?

Hello Lucia.
Thank you for contacting AVG Community Support.
We are sorry to know that you want to cancel your subscription.
We will certainly check and help you.
As it is not recommended to discuss your order/subscription details over this public post. Hence, we've sent you an email to your registered email address. Please check for the email and revert to us.
Thank you for your understanding.