Brushcutters

I recently purchased a Husqvarna 327RJX Trimmer. I also bought the 96OZ of Pre-mixed fuel at the same time, on the same receipt. I have registered my purchase on the Husqvarna site and it shows that the registration is "SOLVED". But I never received a confirmation that my Warranty has been doubled to the 4 years from the standard 2 years. How can I find out if my warranty is, in fact, 4 years now? Thanks