You say he's been with you for a week? How often are you offering him food? If he refuses a meal wait 7-10 days and try again. If he refuses a 2nd time wait 2-3 weeks and try again. He'll catch on eventually. I've tried scenting and chicken broth and sometimes they ate and sometimes they didn't. The only things that have always worked for me are time and patience. The hunger ALWAYS wins.