Feeding schedule for daycare. Help!

Anna

I have a 4 1/2 month old. How much would you sends in bottles to daycare? I have him at daycare for 8 hours so I did four 4 oz bottles every 2 hours. But they were complaining he was still hungry so I increased the bottles to four 5 oz bottles. They are still complaining and suggested a 7 oz bottle. That sounds excessive and I can’t produce that much breast milk anyways!