Looking for a bit help.

I am set up online banking and app and can access to see my credit card account with no issues. But when I try to add another product (Loan) I keep getting the following error message?! Anyone else? I can only see that I have 1 of each of them logged so not sure what i am getting this error. Any help would be great. Thanks.

Update your Online Banking details

We need some more details before you can apply. Please make sure there is only one address, email and contact number in your Online Banking, then try again.