I'm not sure if its available in your area but theres a product called latch assist which worked wonders for my son when he wouldn't latch.
I have not experienced this myself,as I am still waiting for my daughter to arrive, but my mom said I would not latch as a baby. She had to bottle feed me and always had to pump, some babies are just like that, of course then I have heard that some just take their time figuring it out.
Try to put karo corn syrup on ur nipple and let her taste it she will latcj of because its sweet.