Flipkart — Payment refund issue

Address:	110072
Website:	Flipkart.com

Dear sir,
my shelf priya gupta, i had place an order on flipkart samsung galaxy On5, on 16th of april, worth rupees 8190, Oder number(OD[protected].
but due to some region i had cancel my order on 21st of April 2016. but still i did not get refund in my Account, i had used my SBI debit card to pay 8190.
Now my struggle starts for my refund with flipkart.
1.when i called there customer care executive he said mam i know, you returned your product and your payment will refund with in seven working days. then i argue with him, i said i did not receive my product so how come i returned it, even that they are sending me mail for cancellation.
2. On 27th, i again spoke to there customer care executive now she said mam your payment will refunded to your bank account till 6:pm evening but still i did not get any single refund.
3.Now on 28th i again spoke to there customer care executive he said mam your payment is already refunded to your bank account on 21/4/2016 time 9:21 pm and when i argue with him for 27th conversation then he said sorry mam our executive gave you wrong information and when i ask for complaint no he denied to give me.
sir i don't know what kind of game they are playing with me so please help me to get my payment back.and this was my last shopping with flipkart coz they are cheaters and i had really bad experience with flipkart.
please find the attached mails what they send me.

Thanks & Regards.
Priya Gupta.
Cont:[protected]