WITH no passport, money or a place to stay, backpacker Jonathan Ansell was distressed when he called his mother back in Scotland two weeks ago.

The 27-year-old said he was in Melbourne and had lost his passport and mobile phone, before the call ended abruptly. He has been missing ever since.

"I think he must have been calling from a phone box and didn't have any more money and it just got cut off," Judith Ansell, who has travelled to Australia to search for her son, told reporters in Melbourne on Tuesday.

"He said he had run out of money, and was living rough."

Mr Ansell came to Australia on a work visa in April 2013 and was employed on Hamilton Island before hitting the road and visiting Sydney and Byron Bay.

In February, he met up with friends in Sydney, where his Scottish bank records indicate the last use of a credit card.

Victoria Police are checking to see if he had an Australian bank account that could shed more light on his movements.

Mr Ansell's work visa ran out in April 2014.

Mrs Ansell described her son as affable, but extremely quiet and he was unlikely to approach people to ask for help.

His sister Kate has started a social media campaign which has been shared more than 2000 times on Facebook.

A picture of Mr Ansell has been released and anyone with information is urged to contact police.