My baby refuses breastfeeding

I am 8 weeks pp (by c section)

due to her stay in NICU the first two days, we introduced bottles because I couldn't stay with her due to the operation and pain.

But i breastfed her bottle-fed after that. I had too much milk, my breasts were too large.

But about 1 week ago she has been completely refusing my breast milk!

What should i do ? I don't have large hard breast like before.

When i pump i get about 2 oz only in a day.