How rto aend Payment form

I am trying to create a Payment Form using GetPaid.

I am at the moment in the “Address” section. I have entered my first name in the “Placeholder Text” box and it shows up OK in the right-hand side of the page.

However, when entering my surname (this first invoice is ti myself as a test exercise) and click “Update” the default ban still appears (Snow).

Why is this?

The page I need help with: [log in to see the link]