To accept your newbies package click on the gift icon at the very top of the screen. The newbies package contains a lot of free bonuses like a city teleporter.
Once you “claim” the package you will need to click on “My items” to see your inventory.
Once you open your inventory click on the “chest” tab. There you should see the newbies gift package.
Click on the newbies gift package and open it. You’ll receive a popup telling you all the new items you received.