Hi Dave
If the issue was picked up prior to settlement, you could have contacted the recipient advising of the error and issue an amended certificate.
As the settlement has been finalised you could contact the recipient to advising of the error and hopefully, they can make arrangements with the former ratepayer to make the additional payment. Good luck with this option.
Otherwise, seek permission to write off the amount omitted from the certificate. In doing so document how the error occurred, and the steps that have been taken to prevent an occurrence.
Cheers
Anthony
