I had this problem last week, so I took it to the apple store looked angry, waited about 30 mins and had it replaced for free, also on my last macbook which was the last white model (remember the not so expensive ones), I had the same problem, so I got a cheap one from ebay, and it melted the side of it.
Those cheap ones from eBay are shit.
I got through 3 in 5 months. Better off splashing out for a genuine one
Those cheap ones from eBay are shit.
I got through 3 in 5 months. Better off splashing out for a genuine one