Samsung S3 Battery problem

Good Day<br> I purchased a brand new Samsung S3 on contract in December 2013 from Telkom Mobile in The Gateway shopping center.<br> In December 2014, the phone started to switch off randomly. I noticed that the back cover was bulging.<br> To my horror, the battery had swollen up considerably. I contacted Telkom, but they told me that the battery is not covered by any warranty. So I contacted the Samsung service Center in Nandi Drive. They told me the same thing. How can the battery be considered an accessory?? The phone cannot work without the battery!!<br> Now they tell me that I will have to replace the battery at my own cost!! This is totally unacceptable from a massive company like Samsung! Is this that way you treat loyal customers?????<br> Now, I still have another year to go on my contract but I am stuck with a phone that cannot be used unless it is plugged into a charger! I've researched this and a bulging battery can possibly explode, which will definitely cause serious injury to the user. I cannot understand how Samsung can sell a product that is literally dangerous to the well being of the consumer!<br> Mr Moodley