Yesterday I bought a 4 week old rat! I past the HOLE day with her but she is so scared of me that she doesn't even eat from my hand! And she is to scared to get out of the cage! And she is always in the ONE place! HELP
What you need to do is ignore it. Act as if she likes you and take her out. Play with her constantly and let her have rides around the house on your shoulder. Hopefully your bond will grow stronger over time.
But, however, she might be just . . . well, not a great rat. Return her or give her to a shelter and get another pet if my suggestion doesn't take affect within five days. Hope this advice helps! Also, if she starts biting you, go with plan b.