Maybe it's the teat size? Baby might not like the flow. Or were you the one giving the bottle? Babies are smart, they know when mommy is around. Try getting your husband to give her the bottle while you leave the room. Took me a week to get my baby to use the bottle 😅
My baby used comotomo when I bottle feed him before. There is no nipple confusion and he can easily switch from direct latch to bottle feeding.
Can try comotomo bottles / hegen. Read good reviews about them
Maybe change the teat size for more flow
Mrs Loh