Under the current rules, pensioners have their payments stopped after they have been overseas for 26 weeks, and after 30 weeks they have to pay the six months of superannuation back.
She wrote three letters and made several phone calls to MSD from Australia and has been trying again since arriving back in New Zealand a week ago.
"They send stuff or papers to my address in Christchurch, although they know my address. I've had two addresses in Australia, and I've got one here in front of me that they asked the same things. I had never even heard of the Integrity Intervention Center.
"I tried to be a responsible New Zealander. I've been the best ambassador to New Zealand in many circumstances and I've travelled very, very widely. And now I'm just appalled, I don't feel welcome in my own country."
She informed MSD of the trip and later explained the delays to her return.
"We were going to get on a plane to come home on December 10 and it was cancelled overnight.
"With the credit from that, we bought tickets for January 17 and then for January 20. Of course I missed Christmases, missed birthdays, my cousin died about a week before I would have got home.
"I just feel it was the last straw then to receive a demand - 'your pension is stopped and you owe us $11,000-plus'."
Having struggled to get in touch with MSD and provide what they needed, she believed they needed to have more empathy for older people and those who were already traumatised by not being able to get home.
She is also worried about the scale of the problem and how others are faring.
"I'm not a wealthy person, but I can manage. I've heard of people all over Australia, it's just a joke - they have no income at all. It was just stopped."
The Ministry of Social Development has been approached for comment.
