DEJAVU...

I have had NTL BB installed this morning (9:30 - even though it was scheduled for 12-5:30, good job i took the day off work!!) I have not recieved a Welcome Pack or a PIN Number so effectively I have a redundant BB Modem on my desk. As with you guys I rang and was told 48 hours for the PIN to generate.
Rang back a short while later to see if they can set it up their end and a guy gave me a PIN but alas that didnt work. Rang a third time and the lady told me that the she doesnt know where the previous guy got that PIN from as it wouldnt work!!!
As you can guess Im not happy and this isnt a very good start!!!
Was wondering if any of you guys could help?