xamarin.ios - Xamarin C# iOS Google tag manager not able to collect "rdid" value -

i'm new xamarin studio(c#) google tag tanager(gtm), i'm facing issue while sending hits gtm.

i added gtm package using nuget gallery, have gtm container i'm trying hit triggers of type adwords conversion tracking. issue our ios app not able get/fetch "rdid" value, whereas android app fetching value , hits sending successfully.

ios app gtm url: https://www.googleadservices.com/pagead/conversion/960752408/?rdid=&label=twzhcpfq42qqxiqqygm&ai=&remarketing_only=0&timestamp=1472524805&gclid=&appversion=2.11.0&sdkversion=gtm-i-v3.0&bundleid=ourbundlename&value=0.00&lat=1&idtype=idfa&conv=34562933&osversion=9.3.4

android app gtm url: https://www.googleadservices.com/pagead/conversion/960752408/?remarketing_only=0&gclid=&idtype=advertisingid&appversion=2016110101&rdid=aaf018c7-6019-446d-9db7-5bc82b429706&label=teuxcj_dpwmqxiqqygm&osversion=4.4.2&timestamp=1472527002&ai=&bundleid=androidbundlename&sdkversion=gtm-a-v3.0&value=0.00&conv=34562933&lat=0

when tried fix issue, many blogs suggesting include adsupport framework forcibly didn't find proper way include framework forcibly.

any ideas fix issue?