I guess she got permission to call Exodia again? Not asking for help seems to be in-character for her. But really... she should ask for the debt to be gone or something.
"Hey Onee-chan, I stumbled upon an item granting me a free wish, but I passed, because I wanted us to pay our debts off on our own, without help!"
"Wat. You know that I've been working my ass off over the last months."