Unable to restore transactions in iOS 9.2.1 using openIAB plugin.

I am trying to restore transaction in iOS 9.2.1. I am using Unity plugin for that.When I click on Restore Purchase button It shows not$$anonymous$$ng.In the restore transactions callback I have showed restore successful dialog box. But,not$$anonymous$$ng showing to me.In the earlier versions of iOS its working fine. But, in iOS version 9.2.1 it's not working. My app rejected because of the restore transaction not working in iOS 9.2.1 only. Anyone knows whats the problem is? I am using openiab0.9.8.6 unity package.