Flipkart - Sir my order cancelled at 5 July we request complaint to flipkart customer care for our refund they

Sir my order cancelled at * July ..we request complaint to flipkart customer care for our refund ...they raise our complain and given a date after that when I call again ...they give me date and date only ...they don't gave any kind of solution ..i m very frustrate ..flipkart senior also taken My account number ..but there is no respond till now they said seller not approved my cancelation sir it's not my fault...bank start their EMI with extra charge....pls refund my amount..I m very frustrate and in depression because it's a very huge amount which I not able to give this amount from my pocket ...pls urgently refund my amt as soon as possible