Myntra.com — marks and spencer product

Address:

G126, Gulshan Vivante, Sector 137, Gautam Buddh Nagar, Uttar Pradesh, 201305

Hi,
I place order with myntra and i paid for it due to size issue i had to return the product, they ask me for self shipping, that i did on 27th february afterwards i shared my tracking id, delivery date, and receiver name with courier weighnt, this was done from my company courier so i was not able to share my courier charges, i had also mail them that i donot want any courier charges, just refund my product amount, now from than myntra is giving excuses, that they need proper detail, and they cannot accept my courier, i try and connect with them several time but still i havent got my money, it is expensive product, and plaese help me getting my money back, this is not happening first time also happened many times