It is best to not use a bottle. Once baby gets used to bottle it will be difficult to latch baby to breast even with the help of a Lactation professional. Please meet a professional who will help with this. There are home service options available on Babychakra.

so bottle feed is not safer option

Try consulting a lactation consultant if possible. They will tell you the exact reason for the baby avoiding breast feed. My paediatrician suggested me to feed the baby by bowl directly. Since day 20 I make him sit on my lap and feed him. That's much better than bottle feed. I've not given him bottle feed till now