Should Stars be sending me my transfer back?

[chisness]

Yesterday I sent a friend $50, but then realized I sent it to his old account. I then sent another $50 to his new account and immediately emailed Stars to tell them to send back the original $50.

They claimed this wasn't possible and that my friend will need to email them from his registered email address. I haven't been able to contact the friend today, so it's still sitting there. It shouldn't be a big deal to have him email them, but it doesn't seem necessary.

Why can't they send it back since I INSTANTLY emailed them telling them to do so?