Ponga's third-party deal was registered by the NRL at the time according to Chammas, but suggested it could have major ramifications for the Knights.
"They have said it hasn't got anything to do with them," Chammas told 100% Footy.
"They had a meeting last Friday with Andre Ponga - who actually raised the complaint with the NRL - over allegations that his son was owed a third-party deal from 2020 to 2022. The details are still starting to come out, but this is a significant development.
"It's a pretty serious situation. The allegations are significant, it's a six-figure sum that he allegedly hasn't been paid."
Ponga is contracted with Newcastle until the end of 2027 on a rich contract, but Chammas conceded he could explore options should the situation worsen.
Bulldogs boss Phil Gould however believes it's not the club who is at fault given the way the third-party deal was negotiated and registered at the time.
"I wouldn't be jumping to too many conclusions," he said.
"I think Newcastle Knights are protected by the fact that the NRL approved this third-party by the sounds of it. If he hasn't been paid - that's really between Kalyn and that sponsor as to whether or not work was performed.
"I don't know if it's really got a lot to do with the Knights or the NRL. At the moment, it would sound to me that the Knights are pretty well protected."
Newcastle and Ponga are yet to publicly address the allegations or investigation.
The difference in reactions between the gutter press and Gould. It's a storm in a tea cup.