Zestmoney — Not received refund yet

I have done shopping on nykka through zest wallet. after that due to some issue from courier partner my order was rejected. so at that time nykka refunded my amount to zest. but when nykka returned i had already paid the wallet due from my money. i have complaint many time but still they havnt refunded money. this issue was happened in sep 2022. still after having more then 30 email conversation still i didn't get refund. they are assuring me from last 6 month they will give me refund but still not. i have already given all the proof of refund statement of nykka, statement of my bank account and also my cancel cheque.