Here is the mail received by Hasan #Piker, who, like Cenk #Yugur, is banned from UK

"Dear Hassan Dogan Parker, your UK ETA has been cancelled.
This mean you can not travel to the UK without a visa.

This is because your presence in the UK is not conducive to the public good.

You can not appeal this decision.

If you still want to travel to the UK, you have to apply for a visa so we can consider your circumstances in more detail."