Paytm — Cheaters. Promised cashback denied after delivering the product without return pickup policy

Address:	Kolkata, West Bengal
Website:	paytm

Paytm are simply cheaters, I have ordered Iball slide brace x1 and before ordering the product I called customer care that whether I can avail TAB25 promo code or not, they promised me to give cashback of Rs.4000 after delivery, but once the product got delivered they denied to give cashback. Even when I asked them to take back the product they told me there is no return pickup policy and I have to send them back the product. When they denied giving cashback after promising, how can someone trust that they will give me the whole amount after returning the product.