Trying to get baby to take bottle

I returned to work 4 days ago and baby is home with his dad. He is EBF but we practiced with the bottle shortly before my return to work and he did fine.

Now that I'm back to work hes refusing the bottle. We've tried 4 different bottles for breastfed babies, been trying different positions, cold milk, warm milk etc but nothing is working.

We didnt have this problem with my first son and IDK what to do. Hes a happy chunky baby but I'm worried hes not drinking enough and may become dehydrated or lose weight.

I nurse him right before I leave for work then as soon as I get home then for the entire rest of the evening and night. But while I'm gone for 9 hours hes only been drinking like a total of 4oz. I know it's only been 4 days so I'm hoping he starts to take the bottle more but I'm still worried.

Has anyone else experienced this and have any tips or tricks to share?