Flipkart — Lack of customer support and service negligency

I had ordered for a grocery basket from flipkart on 22nd of september and it was supposed to be delivered on 27th of september. Then at 27th of september I reveive a message from flipkart that there is delay in delivery and it will be delivered on 29th of september. I waited till 29 only to receive not even a text regarding my order. I tried contacting them only to be put to delay again till 4 october and on that day I was asked to wait again for next day and even today I have not reveived the order.
There is no resolution offered. No customer service and lack of information.
My order id is OD[protected].
Even contacting them is difficult