I use WordPress for several of my websites. It is extremely functional and it makes really good websites. One major problem with WordPress is if they are even slightly out of date... they can easily be hacked.
So to get around this I use many different functions and features and plugins. One of the plugins I tried was 6Scan ( http://6scan.com/ ) . They looked like they had good software and I thought I would try it out.
Turns out what I paid for was useless so I contacted them through their "Contact Us" link and informed them to please stop my subscription (as there was nothing under my accounts setting on their website that allowed me to cancel the subscription). So anyways I emailed them and asked them not to bill me again as I did not want to use their service.
That was three months ago. Every month since then I have been billed, and every month I have contacted them and begged/pleaded/threatened them not to bill my account again.
They absolutely flat out refuse to even knowledge your communication or stop the billing. The end result is they spend months stealing your money while you fight with a useless bank to stop the deductions.
So this is a warning to all people who might want to use 6Scan for their website security... DONT! They are a scam! They will steal your money. You have been warned.