Thank you for your replies they are very interesting.
I notice Completefinance states my payments wont dip below 0.00001% and the bank wont pay me money. This has been contradicted by Ray Bolger of Charcol who states that as the fees for these mortgages were expensive (I paid 2.5%) then if we should get to a negative position where (if the boe was 0%) the bank would have to pay me. This payment he went on, would not go into my account but would be deducted from my capital.
Could we have maybe the definitive answer from MB or Woolwich? I HAVE asked them both but both seem to not want to answer me.