I had a vaguely similar situation with a female het pied I bought earlier this year. She was shipped to me back in July and arrived fat and healthy. Once here, though, she just refused to eat. I tried offering different types of foods, tried live, tried during different times of the day, tried in different enclosures, and finally just 3 or 4 weeks ago she started feeding consistently for me. I've found that she likes to be in a 41qt bin alone and undisturbed with her meal. It's the only way she'll eat for me. I tried a live mouse this way first, then a live small rat at the next feed, then a stunned small rat after that, and now we're up to stunned medium rats. It's a peculiar necessity for her, but so long as I allow her privacy in a dark tub with the rodent, she'll eat and I won't continue to worry about her.

Hope your girl's appetite perks up for you soon.