Dainik Bhaskar — regarding insufficient receipts and no responsibility towards reader

Dainik bhaskar had started "run bnao karoo k inaam paayo" and i have collected all the coupons but when i went to submit it, they told that there was no any more receipt then. Again i went there after few days but still there was no receipt. They only used to tell that don't worry we will take your collection and get you a receipt. One month had passed but those 100 runs coupons are still with me.