WAZUMBi, thanks a lot. I understand now
For other users with similar problem, I will list my solution
1. I missed the "LINK APP" on Admob panel.
so I did a test ad got the Unit ID, put in my APP and it took a while and I pulled my hair a lot, but eventually I got an Advert on emulator.
2. I should have mentioned that this App is already online and finished development, I was just adding admob as my first experience with admob.
So thanks a lot on that part, fully agree and understand the development cycle
3. regarding the error, OOPS my bad.
I added Admob Lib V 1.36 main library and V2.00 to additional.
so obviously it was using main library first and missing the objects, events, etc needed, for example AdView.Pause was not listed on object property list.
I corrected this and all is now OK.
But I much appreciate your quick help and as a programmer you know the value of brain dumping. No matter how stupid I sounded, just chatting with you helped a lot and of course your great guidance was icing on the cake.
Thanks a lot