Many manufacturers have dedicated support centres designed specifically to deal with issues in relation to their products and may even provide in home support and advanced troubleshooting.
In many circumstances, the manufacturer may therefore be able to provide a quicker assessment of, and remedy for, any issue with your product, even if the manufacturer’s warranty has expired. You may therefore prefer to contact the manufacturer rather than JB Hi-Fi, although you are not obliged to do this and, if at any time you are not satisfied with the manufacturer’s remedy in relation to your legal rights, you can contact the store manager of your nearest JB Hi-Fi store for assistance.