The woman, who asked to remain anonymous, phoned Telstra last week about a fault but was intercepted by a woman who said $650 would fix the issue.
Trusting she was speaking to the telecommunications company, she didn’t realise what was happening until it was too late.
“I am okay with using the internet, and I am aware of scams, but for my phone call to be intercepted like that – it was frightening,” she said.
“I thought it was legitimate.”
Although the Moama woman will be refunded, she urged people to be careful.
“The woman was so engaging and believable,” she said.
“Looking back now I realise I could have lost a lot more.
“Of course, I later realised that Telstra would not charge me for a fault on their end. But you don’t realise these things at the time.
“People need to be careful, I would hate for this to happen to anyone else.”
To report a scam, visit scamwatch.gov.au