See the telltale sign that the Matildas have scored a huge win over the NRL in the battle of the footy codes

While the Matildas came close to packing out Sydney's Accor Stadium for a friendly against China on Monday night, NRL fans were taking advantage of a telltale sign that their code is losing out in the battle for fans.

Almost 77,000 supporters packed into the ground as the Matildas defied the absence of star players Sam Kerr and Caitlin Foord to record an encouraging 2-0 win ahead of the Paris Games.

However, it is a different story for the opening State of Origin match at the same venue on Wednesday night, with revelations Ticketek is now giving away tickets to the match in a desperate bid to fill Accor Stadium.

A code to unlock two-for-one tickets has been released on Australian bargain, coupon code and freebie platform Ozbargain.

Daily Mail Australia has confirmed that this code works on the Ticketek platform and is allowing latecomers access to half-price tickets across categories.

Many footy fans have taken to social media to blame the costs as the reason for the slow Origin ticket sales.

While Matildas fans could get tickets for as little as $20 to the match against China, along with premium private suite tickets for $250, Origin fans are being asked to fork out a minimum of $74 for the cheaps seats or $64 with a concession card.

If you want the best view, diamond tickets are an eye-watering $324 each, while those wanting to sit in the try zone to cheer on their Origin heroes are being asked to part ways with $230 per ticket.

'Whoever set the prices for the men's games needs a good talking to,' one fan posted on Reddit.

'Ticketek don't get Origin,' another added.

Other footy fans pointed out they can get a premium experience at home without the hefty pricetag.

'Hmm, $320 for a ticket, or watch it for free at home on my 75' big screen whilst being dry and warm. tough choice,' one posted.

'I was going to buy but then I don't have a spare $800 to take the whole family so watching at home,' added another.

'In a cost of living crisis it's hard for a lot of people to pay the high prices they are charging to go to the game ... most people are stretched these days,' pointed out another.

While those reasons hold water in isolation, the same high prices didn't stop Queenslanders from selling out game three at Suncorp Stadium in a matter of days.

'It's pretty simple. NSW just don't get Origin. They just don't get it,' A Queensland fan reminded Blues supporters.

Others said New South Wales' poor results in State of Origin over the last 15 years had hurt sales as well.

'I'm not paying hundreds of dollars to sit in the rain watching Blues get pumped. Again,' one fan fumed.

Ozbargain has also provided a code for Origin II in Melbourne, where the match is struggling to fill the 100,000-seat MCG.

Accor Stadium has a capacity of 83,500 while Suncorp Stadium only holds 52,500.

Some fans have pointed at those capacity differences as the reason behind the late ticket sales.

'Sydney stadium is about 60% bigger than Suncorp. And this is down to two days before the game, so it's just getting rid of the last few seats,' one posted.

However another fan has pointed out that the website Connected is also giving away free tickets to the Origin I at Accor Stadium.

People who live locally in the Homebush area can pay for $80 subscriptions to the Connected platform and are gifted tickets to events like Origin along with music and other events throughout the year.

'It is worth it. I got free tickets for Pandemonium rock concert (this alone was worth $175 or something), State of Origin, top tennis championship, footy and NRL, basketball games. All for $80 annual fee,' a local posted.