public FlatOwnerService()
 {
     _flatOwnerServiceRepository = new FlatOwnerRepository();
     _userService            = new UserService();
     _dataApprovalRepository = new DataApprovalRepository();
 }
 public BillingRepository()
 {
     _maintenanceCostRepository = new MaintenanceCostRepository();
     _flatOwnerRepository       = new FlatOwnerRepository();
     _dataApprovalRepository    = new DataApprovalRepository();
 }