Flipkart — Samsung triple inverter ac order id OD[protected]

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Flipkart

Purchased an ac from Flipkart on 26th May 2020. the price of the ac was 30999. there was a 2000 rs instant discount on HDFC credit card and a no cost emi scheme. now Flipkart have me a discount of 4079 which was charged as interest by the bank. the ac was defective since start and after complaining to higher authorities samsung has now agreed to take back the ac and pay me depreciated cost. but Flipkart has issued me an invoice of 24920 where as my product payment i have made is 28999. you'll have deducted the emi interest from the invoice value. as this was a no cost emi scheme the price of the product remains same 28999 for full payment as well as emi so how can you'll reduce the invoice value. now samsung is paying me 17693 as per invoice value of 24920 so who is responsible for the diffrence of rs 4079. i had opted for no cost emi which means i have not paid 4079 as interest it's the price of the product only. i recently purchased a washing machine from Amazon on no cost emi where Amazon also deducted the no cost emi discount from order details but they have given me full invoice of 10999. so either Flipkart gives me the revised invoice for the full value of 28999 what i have paid or they pay the diffrence of the amount of rs 4079 to me or else I will have to move ahead to consumer court with legal proceedings against Flipkart for undervaluing their sales and providing wrong invoice to their customers. waiting for a positive reply asap or moving ahead with legal proceedings in consumer court.