I'm in the same boat the broadband was activated yesterday but no router but do have a tracking number so should be here soon.
However as I had an old Sky router I bought from eBay ages ago a netgear I got the mac address and password from the bottom of the router and got the sky login info from that.
Entered that into the Netgear and low and behold it worked lol.
According to my account info the DLM hasn't started yet either so will just plug the new router in with the correct info once it arrives.