Very easy mate.
Boiling water and thread is all that we used.
Pour water over the badge and then use the thread to get under the letters. After that it's a case of getting into the remaining sticky tape left over. Again this was water and peel.
On mine (white) I just used my fingers to peel the letters off and most of the sticky tape came with. I'll put it down to mine being older that I didn't need to pour any water on again to get rid of the sticky tape.
On previous cars I have used a hair dryer to gently heat the glue/tape up and then peel off. This was a new method for me and very easy.
Hope this helps.
I Love Lamp