Sorry if this is in the wrong board.

I received a random charge from United on my Marriott Premier card.

It just says United Air 016XXXXXXXX, Houston, TX, etc etc.

Now, looking back on my other charges, it looks similar to my other charges (ticket, E+ upgrade).

I thought it may be DirectTV, but two things: I haven't flown United in a few weeks (although I did fly AA the other day closer to when this charge happened) and I *do* have a direct TV charge for 7.99 for LTV/United Inflight TV.

What could this be? Should I call them up?

on that note, they still haven't refunded the $49 from a cancelled flight for an E+ upgrade (I chose E+ on another flight so I got charged 2X $49).

Thanks in advance.