Tips on getting breastfed baby to take bottle?

My little bundle of joy is REFUSING to take a bottle. She is 8 weeks old and around probably week 5 we introduced a bottle and she took it no problem. We tried to continue to give her a bottle every once in a while but since the first time she has had no interest. She doesn’t like pacifiers either.

My boyfriend and I are going on a trip in a month and we absolutely need her to take a bottle to feel comfortable leaving her with grandma for four days! We are on day 4 of using a bottle for her evening feedings and she still cries and cries and refuses to suck.

Any tips for getting baby to take a bottle?

I feel like we’ve tried everything - different nipples/bottles, having me out of the room, different temps of milk, different positions. We are running out of ideas (and patience) and worried we will have to cancel our trip!