Hello, thank you for your reply. For what it's worth, I travel regularly (at least a couple times a year) to visit friends and family that live in the Philadelphia, PA area and have had no problems using my Canadian debit card at various stores and even restaurants (Not to mention I ordered things from the US Amazon site and never had any problem.
I apologize if I'm repeating myself here, but when calling up my bank's customer service (TD CanadaTrust) and having them look into the issue, even they are stumped as to why my card isn't being charged. I don't know much about the internal dealings with banks, but the Bank rep I spoke with on the phone told me that even if someone attempts to use my debit card (whether successful or otherwise), a transactional type record will show, but they had said there were no attempts to charge my card, even though I called up and spoke with an ESET customer rep more than a couple of times to try and renew my ESET product.
I am just very frustrated at the issue since prior to last year, I had no problems renewing my ESET product.