breastfeeding help

J. • -Mina💋 class 2020👩🏾‍🎓 mother of two 👩‍👧‍👦
My son is four and half months old and has totally refused the bottle. This is an issue because I have important things coming up this month and I can't take my son.
 He will wait for me to get home to eat rather than take the bottle. 
I even pump fresh breast milk and he still won't take it so it goes to waste as well as the frozen breast milk I have saved up 
Can anyone help me with some mom breastfeeding tricks. I can't imagine how he'll be when I start not working from home and I go back to school.