Punjab National Bank [PNB] — Refund initiated by Ajio but still not received

I ordered four shirts from Ajio on 1 Dec, 2020 whose total price is 1199.20 rupees and two shirts delivered to me first and then remaining two shirts delivered to me on 9 Dec, 2020 order I'd is FL[protected] but for some reason I returned all the shirts and they pick first two shirts and next day remaining two shirts total refund amount is 1199.20 they initiated the refund for two shirts on 9dec first which is 599.60 and then initiate 599.60 for remaining shirts on 11 dec but I recieve only 599.60 in my bank account and 599.60 rupees are still not recieved In my account Ajio told me to talk with my bank which is punjab national bank but bank not responds so please talk to bank to give my refund Ajio gave me the RRN or ARN is[protected] please talk to bank to raise charge back complaint for this RRN or ARN