shefgab, are you working for Delta by any chance?

OP was doing something the Chinese are perfectly happy about. And which they clearly allow to do.

The only problem here is that apparently Delta staff can't understand TWOV rules. Which means either they're unable to read (which I would feel sorry about.. but then they should never have gotten that job) - or that they can't properly use their system - which means Delta failed at schooling (given we're talking about low-income jobs here, where it's the staff isn't supposed to be educating themselves on low-level "problems"..)

In any case, it's Deltas fault. Don't even think about blaming OP for that.