I totally believe that Phil could have his phone bill on automatic debt and never have checked his data consumption. I mean, it happens, maybe he forgot about it or some shit. Really tells a lot about Leanna's character for still using his ex's data plan for all these months, of course. I guess her personal growth in the past few years that me and other people have perceived only goes so far. She grew up to be a exploitative bitch, it seems.
What I don't believe is why this imbecile had to talk about it, in such a braggard tone, as if he was being clever. Just sweep it under the rug, Phil, have the acid uric from your gout deposited in your brain? He could have just ignored it and no one but him and Leanna would know about it. Unbelievable.