Last season Greg's grandfather threatened to cut Greg out of will ($250M at stake) if he continued to work for Logan. Greg struggled with the decision for a bit, talked to Logan about it, and Logan essentially said who's it gonna be, Uncle Fun or Grandpa Grumps? Greg ultimately chose Uncle Fun (Logan), but it wasn't that many days later, in-show, that Greg then "defected" and went with Ken, who obviously ended up screwing over/going against Logan. So we're still in a bit of a gray area in that regard, as there was never any concrete resolution.
Then, yeah, in last night's episode, Greg mentioned that his grandfather cut his mom off, but we don't yet know if that's in relation to Greg's decision last season or not. Either way, after his mom was cut off, as a consolation of sorts, Greg got her some kind of "gold" credit card that he's apparently paying for himself. And when the Kendall/Waystar news broke, earlier that day, Greg's mom started panic buying on the credit card, since she assumed Waystar was going under, and her son would soon be without a job (and thus would no longer be able to afford the card). Which is kind of a horrible thing for a mother to do to her son, though I can't remember the relationship they had at the beginning of season one. Regardless, Greg was in the process of cancelling the card because of all his mom's panic buying.
