Flipkart — Wrong product delivery and denying to give proper replacement

I ordered few items from flipkart and they delivered wrong products. after too much of discussion they accepted return for 2 and exchange for 1 item. but after exchange also they gave same old quantity.

I faced issue with multiple items in the same order.

problem1 . Order was for aluminum laptop stand but i received plastic stand, i asked about the same initially they were saying no return policy but finally they returned it but did not replace it.

problem2. Order was for a cream of (15 * 2) gm pack i.e 30gm but the one i received was for 12*2 i.e. 24gm after complaining the ask for exchange and in exchange they gave 12*2 gm again.

problem3. bluetooth speaker was not of good quality and asked for return, after doing lots of discussion they agreed for refund that too they cancelled refund once and placed 2nd attempt

in doing all these i got frustreted with asking customer support and finally i lost the bank offer also which i had applied as instatnt discount but they provided wrong products and did not give right replacement hence finally order amount got reduced by around 30 rupees and offer got revoked. they gave only 324rs refund in place of 617rs saying adjustment of offer amount because now it's not qualifying for the card offer.

so, it's like they are do false promise on the website and selling wrong products to customers and customer is loosing money in terms for offer discount or wrong product acceptance.

Very disappointed with flipkart sevices.