Kotak Mahindra Bank — non-receipt of mutual fund redemption

Address:	Faridabad, Haryana, 121001
Website:	www.kotak.com

I have an account crn 78976771. I have nre account associated with demat account. I have bought online mutual fund from demat account and redeemed mutual funds on 18th oct. Mutual fund company is asking for one letter from bank mentioned source of my income. Just because of that letter i am unable to get a credit for my fund. I am asking for the last 1 month for that documents and no-one is providing this letter. I have asked my relationship manager about it. I have visited branch personally but no one helped me. Can someone help me with this, please?