Xiaomi India — after repairing the problem not solved

They (Flipkart) provide defective product and after sales and repair by xiomi (Mi) again they trying to cheat me like i purchased tv with 8 gb internal storage but after repairing they give me only 4.7 gb internal storage and also the system not responding for update. Please do something. Everything i attached with this complaint like snapshot of purchase bill and internal storage and description on flipkart about mi tv which clearly mention 8gb internal storage. Faulty device they (Truecomretail via flipkart) sold me. Xiaomi also trying to cheat me like they taken back 8gb internal storage when doing repair and give me only 4.7 gb internal storage after repair and the device is too faulty not taking any update after repair