I use Privacy.com but haven't had to cancel. You don't pay for the service, as they make their money in adding as a credit-card company and charging merchants fees (or something to that effect). The trade-off is that I had to give them access to my bank account, which would likely make it much more difficult to cut them off if it came to it.
It's extremely useful though, and they say all the right words when it comes to their revenue and their management of user data. The way I see it: they're basically a credit-card company that gives you much finer control of your online payments; they could probably screw me over, but so could my actual credit-card company. They at least make it harder for other companies to screw me over.
Sounds like a good idea. Basically a concierge credit card service that can negotiate canceling a subscription for you. That's actually the best thing that can happen for these cancel my contract type companies.. You pay a flat fee say $10 and then do the hassle of canceling for you or something. Or you build it in as a perk. The mass aggregation factor gives you some money to get the whole process streamlined for your customers.
Their support pages didn't seem to have any information on how to cancel. I emailed their support and requested to have my account deleted and got a polite reply from a human the next morning saying that they had done so.
