Flipkart — received a different model battery for nikon dslr d5300

I ordered an nikon en el 4a for that i got an nikon en el4 which is completely different. When i received an product at same time i sent return request they told it will be picked within 3 days and they never called to pickup the product and return was automatically cancelled again u gave the complaint same the result again i tried they said they escalate to technical team they will solve the problem within 9th january i also mentioned i will be available after 6 pm or else i asked for there time that i can be free they called at morning and they are saying that they tried and i didn't response was there mail sent by them. Same thing was happend when i called next time same procedure was applied from flipkart. Please take some action this is my second time experience. Worst service from flipkart