Typically this is your international phone number which,in the UK, is 44. Remove the leading 0 and replace it with 44 which will make you number 12 digits.
NB The password should be between 6 - 16 chars and contain at least 1 uppercase letter, 1 lowercase letter, 1 number and a special character from !@#$%^&*

Forgotten your password

This is the email address you used to register