Mum and her son, 11, left devastated after falling victim to a low act that saw them barred from going to the State of Origin decider in Brisbane

An 11-year-old footy fan and his mother were left devastated on Wednesday night after she claimed their Origin tickets were resold without her permission.

Nikki Healey and her son Carter travelled from Griffin in Brisbane's north to attend the series decider at Suncorp Stadium with more than 52,000 fans - and she believes her Ticketek account was hacked.

'We got to the turnstiles and my ticket said "cancelled",' she revealed on Thursday.

[We then were told] 'You have listed your tickets on Ticketek Marketplace ... they have been sold. You can't have access to the game.

'I even asked [if they could] take us up to our original seats and kick [out] whoever was there. They said, "No, we can't do that, they [alleged thieves] own the seats now".'

Nikki and Carter, who was in tears, then had no choice but to leave the venue.

She further alleges the Ticketek culprit used their own bank details in her account to receive the money for the tickets.

According to Seven News, Nikki intends to pass on those details to Queensland Police and her bank.

On Thursday morning, Carter's spirits were lifted following a chat with Broncos winger Corey Oates on KIIS 97.3's Robin & Kip radio show.

The youngster was invited into the studio where he met Oates, who signed a Queensland Origin jersey for him.

Oates also offered tickets for the whole family to attend a future Broncos NRL game. 

Carter told Oates his favourite Brisbane player is dashing fullback Reece Walsh - who the footy star will now chase up for a personal video. 

'Hopefully the bank can track down where the hackers are coming from and shut them down,' Ms Healey told listeners. 

'Never mess with a mumma bear with an upset baby.'