Where do I submit my MAC code

[#1]

Hi I completed the sign up process without having my MAC code from BT. On the page immediately after sign up it tells me I need to provide this to you, but it does not give any instructions on how to do this.
As I have the MAC code now I just need to know how to advise/submit it.
Thanks for your help.

[#2]

Hi je72,
Welcome to Plusnet and to the forums.
You can give us a call on 0845 1400 200 or raise a query here: http://www.plus.net/wizard/ If its convenient, calling would be the quickest way to get this dealt with by us.
Hope that helps,
Adam