I tried free-trial, they tried to take money→i didnt have money on that account. do i owe them anything or am i in danger?
First, I’m an Avast user and not an Avast Team member.
When you take out the free trial you have to fill in a payment mandate, if you don’t cancel the trial and payment mandate before the end of the trial. The mandate will be activated and payment attempted.
If you didn’t do that technically you do owe them the payment.
Personally I would never complete a payment mandate for any free trial .