I have three pieces of advice:
1. Take out the commas and periods in your listing titles.
Example: Item # 271226341803 Item # 271227474406
2. Your listings say that you offer worldwide shipping, yet you only have prices for shipping within Canada. I tried finding a shipping price for the US (90210), and it said contact seller. Then I tried international countries, and same situation.
3. Use calculated shipping. I find that most Canadian buyers come from Ontario & Quebec. From your location in Brockville, you can ship for around $9-$10. It would cost you around $15 for provinces further away. Having calculated shipping would only show the higher cost for buyers in the other provinces, while the buyers in provinces closer to you would see the cheaper costs.
Just my two cents.