Dowry Case 498 A , Withdrawal issue

Hello.I have withdrawn dowry case against my husband and in laws (given in writing to police) before charge sheet was filed .This was on the basis of agreement by both parties for mutual divorce mentioning amount and articles to be returned to me(on a particular date at qazi's place) Later they violated terms of agreement but on police's intervention paid the amount & my belongings.But as my husband absconded to saudi ,iam still waiting for divorce(khula) papers sent to him for signatures.But they are wantedly delaying to trouble me. Though i have written letter to withdraw case ,i did not take notice from the police of case closing.Now when i approach police,they are saying that case has been closed as per ur written letter.we are not responsible.It is crime that you haven't taken notice .when they contacted me through phone.I said i will take notice only when i receive divorce papers.Is it not compulsory to take my consent to close case through notice eventhough when i have written withdrawal letter? what is the solution for this? Police officer was talking rudely to us when we approached for this He said itz not their responsibility now as the case is closed.