Further update, because I can no longer edit my post...
If you're trying to opt out and it isn't working for any reason, attempt it again during normal business hours (9-5, EST or PST) and see if it does work. As ridiculous as it seems, many functions cannot be performed outside of this window including registering my billing account. Try again tomorrow around midday and those mysterious "timeouts", "unknown errors", etc may magically disappear. If not, your provider should have a phone number you can call (oh, goody) to take care of the same thing.
If you're trying to opt out and it isn't working for any reason, attempt it again during normal business hours (9-5, EST or PST) and see if it does work. As ridiculous as it seems, many functions cannot be performed outside of this window including registering my billing account. Try again tomorrow around midday and those mysterious "timeouts", "unknown errors", etc may magically disappear. If not, your provider should have a phone number you can call (oh, goody) to take care of the same thing.