Won't take a bottle
Sometimes breastfed babies will refuse to take a bottle, this can be very difficult especially if you are going back to work.
Get someone else to offer the bottle so your baby doesn’t smell your milk.
Try offering the bottle when you are face to face with your baby perhaps whilst she is in a bouncy chair opposite you, that way she doesn’t expect to be breastfed.
Experiment with different teats or you could try softening the teat in boiling water and then allowing it to cool down.
By six months many babies are able to drink from a cup so you may be able to avoid giving bottles altogether.