Was this person really the T-Mobile salesperson who sold US Mobile service to the CEO back then?

**Edit:** I mistyped T-Mobile as "US Mobile" in the title...

In u/stetsdogg's live stream today, a chatter [made the following claim](https://youtu.be/ts-8dJmHSEo?t=5815):

> The CEO of US Mobile Ahmed Khattak is my customer from T-Mobile back when he was a grad student at Yale :)

Can u/ankhattak confirm or deny the claim?