Indian Overseas Bank — transaction declined but amount debited

I transferred amount of rs. 2700 to my friend through phone pe app on 17/05/2018 but transaction was declined on that day. But the amount of rs.2700
With the same utr no. Was deducted from my account on 24/05/2018 but not transferred to my friend or not even refunded to me. It has been more than a month. I also given a written complaint in the bank branch also but there is no use of that. Transaction id is p1805171545227674311074 and the
Utr :[protected]. Please check and refund the amount of rs. 2700. Please please please...