I've never heard of this happening but why would you want to keep using them anyway?

As someone else mentioned.. if you do this with Steam, you could get blocked from accessing all your past purchases. If you did this with your ISP, you may not have other high-speed ISPs to choose from.

And here is the irony.

Money-as-a-service (banks) give you the power to do this. But dependence on anything-else-as-a-service gives the provider power to make you think twice.