No one on the forum is BT, except for the ocassional mod. Everyone is a customer just like you - and most of us have had problems, gone through a learning curve on how it all works then hung around to try to help others with their problems.
You've obviously had a problem and as it's to do with billing/connections this needs to be sorted out by BT. No one from BT routinely read these forums, but you can contact the mods here who are BT and have a good reputation for solving problems. They normally respond within 3 working days.
By the way, I think that geo1986 was correct, the MAC code is for migrating telecoms/broadband to another supplier whereas the PAC code is for mobiles.
