Syndicate Bank — money not refunded

Address:

New Delhi, Delhi, 110053

I have purchased three items of total 2749.84 on 21 march 2018 from myntra and returned all three items on 26 march 2018. But my account reflected the refund of only two items of amount 823.24 and 841.97 not the 935.63. I have contacted the myntra and they told that the refund has been processed through myntra's end. They had given refund arn number to check refund status. Please refund my money.

Refund arn no : 15134838086000000420924
Refund amount : ₹935.63
Refund date : 26/03/2018
Last 4 digit card number :8347