I am not getting few values from quotes apis and not getting data some times for few qoutes

Hello sir,
I am not getting below values as mentioned in the docs for the kites quotes API also for few scripts not getting data. Please find the details below :-
1) I am not getting net_change parameter from quotes API for any script.
Input :-
Instrument token = 969473
Symbol = WIPRO
Name = WIPRO
Exchange = NSE
API :- Quotes
Kites Response :-

{"status":"success","data":{"969473":{"instrument_token":969473,"timestamp":"2021-01-19 13:40:57","last_trade_time":"2021-01-19 13:40:57","last_price":431,"last_quantity":10,"buy_quantity":788151,"sell_quantity":1632196,"volume":8771675,"average_price":434.02,"oi":0,"oi_day_high":0,"oi_day_low":0,"net_change":0,"lower_circuit_limit":388.4,"upper_circuit_limit":474.7,"ohlc":{"open":433,"high":439.55,"low":430.1,"close":431.55},"depth":{"buy":[{"price":431,"quantity":704,"orders":6},{"price":430.95,"quantity":1639,"orders":7},{"price":430.9,"quantity":10142,"orders":28},{"price":430.85,"quantity":1964,"orders":21},{"price":430.8,"quantity":13113,"orders":29}],"sell":[{"price":431.05,"quantity":751,"orders":3},{"price":431.1,"quantity":523,"orders":5},{"price":431.15,"quantity":2285,"orders":10},{"price":431.2,"quantity":4483,"orders":9},{"price":431.25,"quantity":2749,"orders":6}]}}}}

2) I am not getting correct values for last_price and ohlc.close for Commodity.
Input :- Instrument token = 56530439
Symbol = GOLD21JUNFUT
Name = GOLD
Exchange = MCX
API :- Quotes
Kites Response :
{"status":"success","data":{"56530439":{"instrument_token":56530439,"timestamp":"2021-01-19 13:46:51","last_trade_time":"2021-01-08 20:12:47","last_price":49010,"last_quantity":0,"buy_quantity":4,"sell_quantity":3,"volume":0,"average_price":0,"oi":19,"oi_day_high":19,"oi_day_low":19,"net_change":0,"lower_circuit_limit":47540,"upper_circuit_limit":50480,"ohlc":{"open":0,"high":0,"low":0,"close":49010},"depth":{"buy":[{"price":49178,"quantity":1,"orders":1},{"price":49095,"quantity":1,"orders":1},{"price":49066,"quantity":1,"orders":1},{"price":48970,"quantity":1,"orders":1},{"price":0,"quantity":0,"orders":0}],"sell":[{"price":49234,"quantity":2,"orders":1},{"price":49262,"quantity":1,"orders":1},{"price":0,"quantity":0,"orders":0},{"price":0,"quantity":0,"orders":0},{"price":0,"quantity":0,"orders":0}]}}}}

3) For few script i am not getting data from kits quotes API even if status = success. We expect data if status = success.
Input :- Instrument token = 7648513
Symbol = VIVIDHA
Name = VISAGAR POLYTEX
Exchange = NSE
API :- Quotes
Kites Response :
{"status":"success","data":{}}