Phone cracking and getting extremely warm,MTN says not their problem

<p>I took out a contract for my wife on the Samsung S6 year and a half ago,</p> <p> </p> <p>The last few month she noticed the phone gets very hot!thinking it could be the charger she tested it with another samsung charger,same problem!</p> <p> </p> <p>Last week we noticed the phone making cracking sounds,when we saw that the phone was expanding at the back while being used a lot or charged.The white under the cover cracked up and even the camera lense! Worrying for my wife's safety and Samsungs exploding record.I go ask the MTN at Garden Route Mall ,George.What can i do and when can i send this phone in,she tells me that MTN only covers 6months,and 2 years warranty? As well the Samsung girl at MTN tells me only one year and no one will fix it as it looks like my wife dropped the device(which never happened as she takes care of her phone very well).The women at MTN tells me to go to WeFix and hear what they have to say about this phone,exactly as i thought they tell me,"Sir the battery is expanding a lot ,this could be dangerous rather send it in".....So i go back and stand in the queue,for 10mins i see them seeing me as i stand infront of the queue.They walk passed me twice and help other people behind me and refusing to make eye contact any further.</p> <p> </p> <p>I was never rude in this situation but now i will be after MTN shows me to fly off and pay for a phone that might have a chance of dying or exploding!</p> <p> </p> <p>MTN if this phone explodes in my wife's hands or against her face you will be taken responsible !!</p>