Willie,
Why did you have to do your Instrument Written exam if you were current on your foreign licence? If you have maintained an IFR rating on a foreign licence and come back to Canada, all you have to do is show proof of maintaining your foreign IFR and you are exempt from writing the INRAT. All you have to do is complete an Instrument ride. If you did the INRAT, then you either had poor information or did not maintain a foreign IFR.