fixed the biller Id Saving problem added 404 not found url

src/main/java/com/billpaymentservice/bbps/controller/ComplainController.java

@@ -0,0 +1,42 @@
+package com.billpaymentservice.bbps.controller;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import com.billpaymentservice.bbps.dto.ResponseModel;
+import com.billpaymentservice.bbps.dto.request.BillPaymentRequest;
+import com.billpaymentservice.bbps.dto.request.ComplaintRequestDTO;
+import com.billpaymentservice.bbps.service.ComplainService;
+import com.billpaymentservice.bbps.service.PaymentService;
+
+@RestController
+@RequestMapping("/complain")
+@CrossOrigin(origins = "*")
+public class ComplainController {
+	
+	
+	private final ComplainService complainService;
+	public ComplainController(ComplainService complainService) {
+		this.complainService=complainService;
+	}
+	
+    @PostMapping(
+        value = "/addComplain",
+        consumes = MediaType.APPLICATION_JSON_VALUE,
+        produces = MediaType.APPLICATION_JSON_VALUE
+    )
+    public ResponseEntity<ResponseModel> addComplain(
+            @Validated @RequestBody ComplaintRequestDTO complainRequestDTO) {
+
+        ResponseModel response = complainService.addComplain(complainRequestDTO);
+        return ResponseEntity.ok(response);
+    }
+
+
+}