It's that hard to understand? Nokia USA and Nokia Canada are seperate companies selling the same brand. If you buy a phone from Nokia USA, why would Nokia Canada be responsible for the warranty of another company's product that they have chosen not to distribute?
Two months after I purchased my phone from Newegg.ca, I needed to get my phone warranteed. I didn't buy the extended warranty from Newegg. I called them, told them that I was having trouble getting Nokia to honor the MANUFACTURER's warranty as they (Newegg.ca) sold me a US product in Canada without first disclosing that the manufacturer's warranty wouldn't be valid in Canada. They took care of it for me by routing my USA warranty claim through the states.