Paytm Mobile Solutions — i have not get 1000 rs. refund which is debited from my state bank account

I have not get my refund of rs. 1000 which is debited from my account... I was transferring an amount of 1000 rs. To my friend and after the whole process the money has been debited from my state bank account but it was not sent to my friend... And it has been 10 days i am waiting for the money... And when i call to customer care of state bank they are not picking up the phone and the same is as for paytm... Please solve my problem. I need my money urgently because i am a student.
Thank you.