The Mac Shop is the place to get secondhand Apple products & Accessories.
"iStore is an Apple Premium Reseller APR which is a dedicated hub for Apple products and accessories. iStore aims to maximise customer value offerings by providing an authentic Apple experience and offering customers exclusive services such as in - store complimentary training, technical support, technical setup and certified battery and screen replacements. iStore offers contracts on various mobile networks as well as a 2 year extended warranty option with iCare Plus."