Account Error When trying to transfer phone number

I am a new Koodo customer and am trying to transfer my phone number to my new Koodo account.  I am at the page where I need to enter my previous provider account number.  I am under my dads Telus account. I have tried to put his name (as he is the Telus account holder) and my name and the Telus account number with no luck.  It keeps telling me the account is incorrect.  I have tried with zeros and without. Please help.