Flipkart — My complaint is about delivery related

I ordered Wildcraft bag on 9 th August and Flipkart promised it wil deliver by 15 th August but on 15 th it took extra two days and I asked them reasons they told pincode is not serviceable so they wil deliver it within next two days but after two days they cancelled order without my consent without contacting me without my any knowledge ...after that i called customer care they said to place new order so again i placed new order and Flipkart promised to deliver on 20 th August but same case happened again they took extra two days and promised me they will product within next two days and a senior head promised me my order wil be not cancelled at any cost and they wil deliver product in next two days but today 22 August again they cancelled my order without my consulat without my knowledge without contacting me...so i want to ask who is responsible for 15 days wasted on single product ...if pincode not serviceable why the hell u take order and u cancel order when product reach nearest hub ...and delivery agent why the hell they don't contact customer ..i was flexible with .y order i would have collected from hub and but no one contacted me ... Flipkart exploit customer and waste their time and who is responsible no one taking responsibility i want solution for this ur delivery partner words logistics team worst so irresponsible play with customer