GPS Warranty

My son bought me a sellers in London, Ontario,in April/2010. In September it stopped reading the map. Sent it back to Nextar at my expense.It was returned, reading a USA map only. Sent it back, again at my expense. same thing, would only read a USA map. called Zellers and explained situation. To bad, they ar not responsible for warrenties and my 90 days were up.After many calls to Nextar and a complaint to the Better Business Bureau I think I am getting results. Shame on Zellers for their attitude. Walmart gives you a year warranty on anything, so I guess you know where I will shop now