Flipkart — Instant discount on prepaid transactions not received

Maine Flipkart se ek Rs 27000 Phone khareeda 25 June ko, Us phone pe ye Rs6000 ka instant discount de rahe the prepaid transaction karne me. Yaani jo payment honi thi wo[protected]= 21000 honi thi but inhone mere account se 27000 Kaat liye jab maine inko complaint kiya to pehle 1 month tak aaj - kal aaj -kal karte rahe, 1 month baad mere flipkart wallet me Rs2500 daal diya ye boltey huye ki next 24 hours me hum balanced amount daal denge, iss baat ko huye aaj 1 week ho gya hai now they are saying ki hum 2500 se jyda nahi de sakte.
inke wajh se maine jis credit card se payment kiya tha uska amount bounce ho gya, mera cibil khraab ho gya.