Can I suggest messaging us on Social Media, either Facebook or Twitter? If you mention that you were sent there by DAN_C, I'll give the guys a heads up. They do have a point of escalation for any urgent activation/porting enquiries for those without a working service.
Our main priority right now is to ensure that all of our customers have a working service. I can't promise that you'll get an instant reply, but they will definitely get back to you.
We've lost almost 3500 support staff. You have to try and bare with us I'm afraid.
We're really doing the best we can.