help! my baby won't take a bottle

My 3 month old won't take a bottle! He took a bottle when he was a month old but has been breastfeeding exclusively these last few months. I couldn't keep up pumping and breastfeeding since he wants to eat 24/7. I've been trying to give him a bottle everyday for the last two weeks with absolutely NO LUCK! I go back to work next week and he still won't take one. Do you ladies have any tips or tricks? I'm really worried 😩