That's because a lot of it went to Scopely, and the rest went to fast food joints.
In thinking more on Phil's angry reaction to the suggestion of Khet helping out financially, I'm beginning to suspect that he's afraid. Of what exactly, I'm not sure, but it doesn't make sense for it to be just straight-up honest anger, because of his grift being what it is. Phil generally acts like he's poor, and so it should be a given that he and his "family" do not rely entirely on him to pay the bills. He also doesn't like to admit that his marriage is of convenience, so it should also be a given that Khet is a partner, not a sugar baby, which is exactly the picture painted by Phil's angry reaction to the idea of her income being used to pay bills to any extent.
Of course, at the end of the day, we don't truly know what Khet knows about their situation. I doubt she's aware of what Phil actually earns, because he's full of shit with everybody, no exceptions, near as I can tell, but what if she is? That would explain his anger, he doesn't want to have a conversation with Khet about why chat keeps talking about including her income, or, even worse, having her work harder to make more money. Regardless of what Khet would actually think, I can easily picture Phil being mortified by such a prospect because he's a pussy.
But like I said, I don't think that's it. All signs point to Phil being utterly dishonest with Khet about damn near everything, so it doesn't make sense to worry about that convo since, like I said, it should be a given that she already helps as much as she can. I suppose it could just be honesty leaking out of him, a knee-jerk response based on the truth of things (that Khet is a sugar baby), and not on his unconvincing bullshit narrative.