Dear Ojasteneda,I want to offer my little advice.Since ytou are already in process,I don't think you are qualified for a refund.
Based on your reason for the withdrawal which is (family matters),I believe that situation is a stranger which just invaded your plans and it will eventually get off you by God's grace.
Could you perhaps allow your application to continue hoping that your present circumstances now might or will change for good,thereby making your dreams to be a canadian come to past.
Since you have come this far,I believe you will be happy in future knowing that you made the best choice!!
Good luck