Oh, I see. Now I do have a number beginning with 900000 with a...

Oh, I see. Now I do have a number beginning with 900000 with a further four digits. That's my account no. and if Line 8 wants that rather than my date of birth, then I must go and change it. Thanks. Best of luck with getting the information via your persistence but they sure don't make things easy, do they? They refer to this as a Reference No. Wonder why they are not consistent and if they want the Account No., ask for it using the same term? How not to communicate properly seems to characterise their forms!!! grrr