Just looking at the Help section about moving my ADSL to my new house, Plusnet say that I must be the registered phone line owner to do this. The problem is that my wife is the registered contact, but ADSL is in my name. Will this be a problem??
Provided you have authorisation from the account holder, it is OK.
Problems can arrise when the account holder makes a change to their BT account, hence why they ask you be the account holder, so that you are responsible for these changes.