A secret audio recording obtained by the ABC has revealed how a Darwin pub owner accused of banning Aboriginal patrons allegedly tried to block an Indigenous man from collecting on a pokies pay day.

Key points: Brenton Carter won over $12,500 playing pokies at Rorkes, but staff say they were instructed to tell him he was "too drunk" to collect

Brenton Carter won over $12,500 playing pokies at Rorkes, but staff say they were instructed to tell him he was "too drunk" to collect They also said they were told to keep putting Mr Carter off until he stopped coming in to collect his winnings

They also said they were told to keep putting Mr Carter off until he stopped coming in to collect his winnings Audio recordings capture Rorkes owner Mitch McNamee telling staff not to pay out

Brenton Carter, 38, won over $12,500 at Rorkes Beer, Wine and Food venue playing pokies in the gaming room.

After scoring a jackpot on December 19, Rorkes staff said Mr Carter was told to return the next day to collect his winnings after bar employees were instructed to tell him he was "too drunk" to collect the money.

Staff said they were then instructed by Rorkes owner Mitch McNamee to not pay Mr Carter and to "put him off" until he stopped coming in to collect his winnings.

When Mr Carter came in to the CBD venue on December 24 demanding his money, staff gave him $1,000 cash and an $11,000 cheque that was due to be paid out by a Darwin pawn shop, but was later cancelled.

The owner of Cash Stop, the company that paid out Mr Carter, told the ABC they were pursuing Mr McNamee by legal means to recover the money.

Mr McNamee declined multiple requests for comment, but previously told the ABC that allegations against him are "not to be believed".

However, in a voice recording obtained by the ABC, Mr McNamee is heard instructing his staff not to pay out the man.

"That guy is gonna come back furious because the money didn't go in because it's not in there, it's not in there," Mr McNamee can be heard saying.

Brenton Carter's winning receipt for the pokies at Rorkes in Darwin. ( Supplied )

When asked by a staff member whether they should "drag it out longer" — referring to not paying Mr Carter — Mr McNamee responded:

"It's too late, someone's given it to him.

"Someone gave out a $10,000 cheque that we haven't got the money in the bank for yesterday."

He can also be heard saying: "I told duty managers not to pay it."

Mr McNamee has been contacted for comment.

Rorkes remains closed following mass staff allegations

Former duty manager Thom Brock confirmed that Mr McNamee had instructed him not to write a cheque to Mr Carter.

A text message sent to a staffer at Rorkes from the boss's phone. ( Supplied )

The ABC also viewed text messages sent from the phone number of Mr McNamee, in which a staff member expressed that she felt bad for having not paid the money out.

"I don't care, I've got bills to pay," was the response.

Mr Carter's allegations came after a number of staff accused Mr McNamee of not paying them, and instructing them to purposely deter Indigenous people from entering the premises.

"I told you no f***ing blacks in my bar," he allegedly wrote to an employee via text message.

Staff members said they still haven't been paid back to earlier this month.

Rorkes was closed for over a week, and a handwritten sign on the venue's back door says it is closed "until further notice".