I have a Morelia spilota mcdowli that did not eat once out of the egg for its owner. It was 11 grams when I got it and probably had not eaten for four weeks. I managed to get it to take one pink and then it refused for another month or so although it would bite anything that would come near it, any food would be immediately dropped. I was getting concerned and almost to the point of assist feeding.
I spent probably 30 minutes one night enticing it to eat. I wound up dispatching a mouse pink and then cut it and soaked the head of the pink in the blood. I then held it with forceps and kept the pink at the mouth of the snake non stop, eventually it grabbed it. As it was swallowing I followed with a second to make sure I got some food in it. Its been eating frozen pinks ever since.
Another thing you could try is scenting the pinks with a chick, I have heard this helps. Another thing is do not stress the animal, make sure the cage is in low traffic area, and it has the ability to hide, and of course do not handle until its eating regularly. You can feed every few (3-4) days, I have noticed my carpets have much faster metabolisms than balls and usually defecate weekly.