Hey @Cheeky92 and welcome to our farmtastic community! Congratulations on the new phone. You haven't quite lost your boosters but the trouble is, in order for you to be able to play offline, the boosters on phones are saved within the phone data memory, not the game itself. So they will stay on the old device. You can play the game on more than one device though so if you still have access to your old phone, you can use them up there. The only time they can be transferred is if you have actually purchased them. Just make sure you are logged in either by the Kingdom or Facebook as you were on the old phone and all the rest, the levels, beans and gold will show up
In the meantime we have a contest to win gold bars and you can find that here