Your Customer Number, given to you when you signed up for Digital Banking is your date of birth (ddmmyy) followed by your unique number which identifies you to the bank. So for example if your date of birth is 9th March 1967 then your Customer Number would start 090367 followed by up to 4 numbers. You use this number to log on to online banking. Usually this number is emailed to you when you sign up so check your inbox.
No problem. Simply follow RBS reset portal to reset your details