R.L.
I don't knwo if you have tried the Playtex nursers but they were the only bottle my son would use when I wasn't nursing. The only problem with those is you have to eventually wean them off that bottel onto another bottel and then transtion to the sippy cup. (But it's a small price to pay for the benefits of breastfeeding.)
Also the playtex nursers allow the baby to drink semi upright and not take in a lot of air. It also could be that she is taking in too much air and feeling a false sense of fullness.
Don't worry she will not starve, when she is hungry she will take a bottle!
Good luck!