[Resolved]  Flipkart — my order cancelled without any notification

I ordered a mobile phone on flipkart order number:
Od[protected]: and it was supposed to be delivered on 18th oct 2018 though as per the msg received. Which i have still not received it. I called in customer care several times from 3-4 days. They are just giving me assurance that i will get the mobile but suddenly i got a sms that my order gets cancelled. I called to customer care they told me that its not their responsibility. Who is responsible? I only know flipkart from where i ordered my mobile i don’t know the seller. Is it what your service? Do you think we can trust on you? Today is my wife birthday and i must give that phone to her as her birthday gift. Its terrible service from you. Are you fooling people? I need my order anyhow.