My daughter has been mostly breastfed however she would take a bottle of formula every couple of days from 2 months old howeve since starting her on solids at 6 months she point blank refuses a bottle whether it's formula or expressed breast milk. She's now 9 months and I really want to try to wean her off breast and onto formula bottle as I'm going back to work soon, she won't take a bottle from grandparents or partner either. Any advice?