A magistrate has warned one half of Perth's so-called "dine-and-dash" couple she faces jail if she is convicted of any of the dozens of charges against her, describing her as a "prolific offender".

Lois Clover Loder was arrested in April after a restaurant in Henley Brook posted allegations on social media that she and a male companion dined and then left without paying the bill.

Ms Loder was also charged with not paying for fuel at a Glendalough service station and using false credit card details to buy alcohol and book a hotel room.

Today she appeared again in the Perth Magistrates Court where it was revealed she is also facing charges of PayPass fraud.

Her lawyer suggested that if Ms Loder was convicted of those charges, she was likely to receive fines because they involved amounts under $100.

But Magistrate Robert Young said he was concerned that Ms Loder might think they were "fine-only offences" and he wanted to make her aware she was "looking squarely" a jail term.

Mr Young said the PayPass frauds of which she is accused were an "absolute scourge", and members of the community were being taken advantage of by dishonest people.

"She is a prolific offender, offending in a prolific way," he said.

"She has been imprisoned before for offences of dishonesty and received suspended sentences seemingly with no long-term impact on her offending behaviour."

Mr Young allowed Ms Loder's bail conditions to be amended so she could reside at a new address, but he rejected her applications to remove a night-time curfew and to allow her to have contact with her co-accused.

She is due back in court later this month.