After being a subscriber for a few months I noted the following:
I was never sent an invoice or reminder that I was being charged.
I got a notification saying that my card had failed, so that let me know I was being charged.
I went to canel online but found that I was not able to cancel unless I called in.
So the phone number given for my country was invalid and the link to other phone numbers doesn't go anywhere useful. You can't even email them about cancellation, it can only be about renewal.
I cannot delete my payment information and so I have to cancel my card to stop being charged.
I wish I had read the other reviews before signing up and putting my card details into this website.