Exactly what I warned about!
I had a similar problem with 123-reg, and it took over 2 weeks to sort it out. I had to go through Pipex hosting and demand to speak to one of the managers before I could even get them to accept that they had made a cockup. 3 weeks after registering the domain I was first able to use it.
David
Moved from BTopenworld to ZeN - several years ago. Delighted (most of the time)
Zen 8000 Active - speed capped by BT, usage capped by Zen