"I've got a problem. Number one, we pay our bills on The Block. We have to - it's our reputation," an angry Cam will tell Jason and Sarah in a yet-to-be-aired episode.
"This guy has a family. He's owed 8000 bucks and you've told him you're not paying any of it."
The Gold Logie-winning presenter elaborated to the magazine, telling them he was over the contestants' bad attitudes and laziness.
"Jason and Sarah have quite a few weaknesses in this competition. They've struggled all the way through with money and timings. I've done 13 of these [seasons of The Block] - laziness gets under my skin."
In the upcoming episode, Sarah reportedly becomes heated as she explains why she and Jason didn't want to shell out cash to the tradies.
"None of the work was done properly and he wants to charge me $8000. I don't think so," she reportedly said.