Thanks for letting us know about the issue that you are experiencing.
I would like to look further into this issue for you. Please send me a PM with your Roku account email address, and include the serial number of the Roku device from Settings>System>About. I'll be able to assist you further from there.
Did you get this resolved? I'm in the same boat, and customer support was no help at all. They just told me to create a new account. My concern is the saved payment information, that someone else now has access to.