Samsung Mobile — Samsung Z1 model Tizen OS not working

Address:	Thrissur, Kerala, 680121
Website:	www.samsung.com

I bought this mobile few months back hoping Samsung new OS would be the best than Android but highly disappointed with the phone. Watsapp chat doesnt even work most of the time(even watsapp call not there in Tizen), battery drains very fast, network issues most of the time. I dont know what is the use of a smart phone itself after buying this.I complained to the store multiple times but no response, given for repair in Samsung repair authorized center but still facing the same issues even after repair.Please guide me on this or i am planning to move with consumer complaint center