Vanessa Andrews and Jorge Fuenzalida were both badly injured in a stabbing at Countdown Dunedin Central last month.
In a statement released via police, they said what happened that day was still very much on their minds.
"We try to help people where we can, and that day we heard people in distress. During the process we both got badly injured."
They did not wish to provide more details as the case was still before the courts, but said it had changed their lives forever.
"We still have a long way to recover, but we are getting there one day at a time with some good days and some not so good days."
They thanked those who were involved in the response to the stabbing, from supermarket staff to police, St John and the staff at Dunedin Hospital.
Mr Fuenzalida is a prison guard at the Otago Corrections Facility in Milburn.
"We would also like to express our thanks to all the staff at Otago Corrections Facility for their ongoing support.
"From the beginning they have been outstanding."
The 42-year-old alleged stabber is facing four charges of attempted murder relating to the incident on May 10. He has interim name suppression.
