Aww jangan risau, ramai je baby yang garang botol at first, mine took almost 2 weeks jugak! Lepas tu boleh try bottle feeding in a different room so dia tak kenal susu badan ibu, atau nanny cuba suap perlahan-lahan tanpa pressure (sometimes jangan paksa, let baby explore the teat dulu). A few of my mum friends swear by warming the bottle suam-suam so rasa lebih dekat dengan breastfeeding, dan ada jugak yang tukar ke anti-colic bottle yang lain brand. Tapi since he's refusing completely and you mentioned tak berak dulu, mungkin bagus konsultkan paediatrician dulu je to rule out any feeding issues, especially before you go back to work.