I had this problem too. And...I had to go back to work. Ugh! We tried different people, we tried different bottles.
Finally, I called up the daycare that we were going to use & they said Bring Her In & we'll just deal with it.
And...they did. Thank God. There were 2 teachers she was willing to take a bottle from & it was a huge struggle for them most of the time. She had to be held very close, very similar to how she would be for nursing, she preferred the more "no-nonsense" teachers vs the more nurturing "soft" ones.
And...basically she drank as little as she could & would then nurse the night away once she was home w/ me.
So...basically I feel your pain & what I would say is find someone who is EXTREMELY patient & if they are going deaf already, that probably couldn't hurt since the screaming won't bother them as much. And...maybe if you could find a place to go that is very close so it is only 3 hrs being away & she is only miserable for that last hour?
I know that for me, I could try someone else but if I was anywhere in the vicinity, she was not going to go for it. So...you might just have to find someone willing to put up w/ screaming. And you might be surprised to find that if you are truly gone, she might take it easier.
We had used Avents for our older daughter but the little one hated those. We had to use the old fashioned Playtex nurser bottles w/ the new nipples that are more boob shaped.
I hope this helps. So sorry you have to go through this. I know how hard it is.