Elliot moved to New Zealand with her parents from Scotland, aged 10, in 1973.
She believed the laws changed in 1977, meaning any arrival before that date was granted automatic residency but not issued any papers.
It is the lack of papers that had become a headache.
"The only thing that has highlighted this in all this time is this job.
"I vote, I am on the electoral roll, I have an IRD number, I have a New Zealand driver's licence but when I called Immigration New Zealand there's no record of me."
She said she was also told that information was not shared between Government departments.
"By rights they could deport me ... I hope they don't."
To be entered into her potential employer's payroll system she needed either a passport, or to show both a driver's licence and a birth certificate.
None of these proved she had the right to live and work in New Zealand, she said.
She grew up in New Zealand, originally in Auckland, before making the move to the Alexandra area, and has two daughters and four grandchildren, spread between Alexandra and Cromwell, she said.
She also has a son in the United Kingdom - ironically, on a UK passport.
"I got all the kids UK passports."
She had never left New Zealand, so she had never needed a passport.
She left a job with Downer to tour the country with her husband in the house bus they have lived in for the past 10 years and working from home had suited her since, she said.
She had also contacted Waitaki MP Jacqui Dean's office and staff there were trying to speed up the process, Elliot said.
"I call myself a New Zealander, I speak like a New Zealander."
An Immigration New Zealand spokeswoman said Elliot's application was lodged on July 20 under a previous name.
