It might not matter, or it might, but there seem to be several exchanges for Glasgow.
Pleas could you put your phone number into this checker
and give us the URL of the result?
How much are you willing to pay for the broadband, and can you schedule big uploads to overnight?
Re the 10 calls per month, (that seems high, I thought it was 2), but you may not realise that the included calls count, even 08700, 0845 etc.
Edited by RobertoS (Wed 06-Apr-11 17:30:19)