Samsung - Flipkart cancelled my order on delivery date before out of delivery and without my consent and witho

I was orderd samsung f** mobile on * may **** which price was ***** on sale period and i make payment by credit card and received instant ****rs discount so i brought phone at ***** rs. But on flipkart app order status not update after *may which last status show indore motherhub and show estimate delivery on ** may **** and after i talk with custumer care and the tell me dont worry your phone will be deliver on ** may **** but on the delivery day of ** may in the afternoon i write an issue related delivery on flipkart app and i write" i want fast delivery" and faster delivery request but suddenly evening i received a sms your issue given resolution and i checked on flipkart app which shown me" your order is cancel" and refuns process in still running. iam shocked because i have no phone and iam waiting this phone contionously * may also i using my friend mobile after that i contact with flipkart custumer exective which answer is cancel is done by you.sir .. and i say why i cancelled my ordered because i urgently need phone in this time period flipkart custumer exexctive blame me that the product is cancel by you.. and i still cantact different and higher authority executive which hear me and appolozies sorry sir it was our mistake we cancel order without your consent and without notification
And advice me sir you should place new order but if i place new order which phone cost show *****rs because now sale period is over ....so i am very unhappy from flipkart and also i swear i will not ordered anything in my life from flipkart beacuse this incident i very upset flipkart play with emotions and i am very disapointing and i hate flipkart