Three Liberal MPs have paid back money over their claims for a controversial parliamentary allowance, including Member for Flinders Peter Treloar.
Mr Treloar, as well as Nick McBride and Adrian Pederick, have paid back payments claimed, Premier Steven Marshall told an estimates hearing on Wednesday morning.
He said the reimbursements were for incorrect claims made during previous years.
Mr Treloar paid back money for two nights claimed.
Issues began last June after questions of the then Upper House president Terry Stephen's entitlement to the payments, with then Independent Commissioner Against Corruption (ICAC) commissioner Bruce Lander opening an investigation into use of the Country Members Allowance after five Liberal MPs admitted errors or confusion over their payments.
Under parliamentary rules, country members are eligible for the taxpayer-funded allowance for travelling to and from Adelaide for parliamentary and other official duties, if the member's usual place of residence and at least part of their electorate is more than 75 kilometres from Adelaide.
Those who meet this requirement can claim $234 for each night they stay in the city.
Mr Treloar was one of nine MPs cleared of any wrongdoing last October by ICAC commissioner Ann Vanstone.
He said he paid back the money after being made aware of an error.
"After becoming aware of a clerical error I made back in 2012, I paid back two night's accommodation," Mr Treloar said.
"This issue has been well canvassed during the second half of 2020. At that time ICAC requested information from all MPs representing regional electorates.
"I provided the information requested - and no further information was sought. There was no finding against me."
Mr Treloar said he considered the matter closed.
Former ministers Stephan Knoll and Tim Whetstone resigned amid the fallout, while Mr Stephens and government whip Mr Pederick also stood down.