The Canberra Raiders Club is adamant its employees never saw signs of problem gambling from a woman who lost more than $200,000 on poker machines in their establishments.

Last year, the commission found there were eight occasions when a patron's problem gambling should have been recorded, but staff members failed to do so.

Professor Laurie Brown fed $226,050 through poker machines at Raiders club in Belconnen.

The gambling went on for over 18 months at the Raiders' Belconnen site, before the alert was finally raised by her bank at the beginning of 2017.

Raiders clubs were fined by the gambling and racing commission for failing to identify and report Professor Brown's problem gambling on eight separate occasions at their Belconnen Club.

According to the commission, one staff member did tell investigators that Professor Brown's multiple withdrawals were reported to duty managers on multiple occasions, but no action was taken.

The Raiders dispute that in their appeal against the fine in the ACT Civil and Administrative Tribunals.

Laurie Brown has said she wished staff confronted her about her excessive gambling. ( ABC News: Diana Hayward )

"Staff did not observe the member having a gambling problem," the document reads.

Professor Brown was able to get thousands of dollars in cash to feed the pokies, getting around ATM withdrawal limits by using the club's eftpos machine to make multiple withdrawals.

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The eftpos machine is behind the counter at the club and requires a staff member to input a PIN and swipe the patron's card before money can be taken out.

Staff are trained in the gambling behaviour checklist that states a sign of a problem gambler is that they "get cash out on two or more occasions from ATM or eftpos".

That is a sign of "money seeking" — a code red for predicting problem gambling — and staff are required by law to identify such problem gamblers and record them on a central register.

On none of the eight occasions did staff record the multiple withdrawals on the register, even though cash was obtained at least four times during each gambling event.

The worst instance occurred on November 9, 2016, when Professor Brown was able to make seven withdrawals of $400 or $500, adding up to a total of $3,500 in one gambling session.

The appeal will be heard by the ACT Civil and Administrative Tribunal in June.