Seneca fee refund takes 2-3 months and I think they started it only in October. Wait till end of December. If nothing happens by the 1st of Jan, call them up.
If you know someone in Canada who lives in Toronto, you can ask them to go and inquire about your case. Actually I have requested the refund from Seneca college as well and the person who will get my refund is in Canada and my father's family friend, right after they send me the email that they received my request for refund and it is now processing I called the refund entitled person who is in Canada and he visited Seneca College and they told him that it will take about 4 to 6 weeks to get the refund.