Samsung Z2 missing features

Good Day Last week Friday was Black Friday. I saw the Samsung Z2 advertised for R600 in various stores. I purchased one from Woolworths in West street, Durban CBD. The problem I am experiencing is that the device doesn't have the features listed on the internet, namely: 1) Dual Sim www.gadget.co.za/samsung-tizen-phones-arrive-in-sa/ 2) Ultra Data Saving Mode bandwidthblog.com/gadgets/samsung-z2-tizen/ and 3) Dual app www.tizenexperts.com/2016/08/dual-sim-whatsapp-feature-samsung-z2/pp-feature-samsung-z2/