The customer you are trying to sign up has been to the Ezybonds website recently either directly or via another website. The new member can fix the issue by closing their browsing session which clears the cookie.
Background Information:
Ezybonds has created a cookie that keeps a record that a person has visited the Ezybonds website and records the referrer's link for future visits by that prospective new member.
This cookie was created to ensure that new members register under the referrer who introduced them to Ezybonds.
The cookie is browser session active, so by closing all browser windows the cookie is cleared.