Unity Ads - iOS issue

I use integrated Unity Ads services in my project. I'm showing Ads only on Android version of my game.
The version for iOS version is free of any advertisements. The problem occurs when I'm submitting the game for Apple review and I select option that my apps don't use IDFA.

ITunes Connect rejected binnary and I received the note that my app contains IDFA.
How can I dissable Unity Ads on iOS and still have them on Android? Does anybody know the solution?