i have no idea how to cancel avast cleanup premier and i want to

ok, so…
long story short, i used clean up premier on a free trial and i
really didn’t wanna use it again cause it’s kinda messy and i’m just not fond of it.
well unbeknownst to me, they took out a year long payment out and i want to both get a refund and cancel my subscription
but it won’t
let me?
i can’t find the order form, there is no email or anything, but there’s a licence and that’s it.

please help.

Contact Sales: https://support.avast.com/support/tickets/new?form=1