@Detected You have used the Get action and are adding your body to the headers. You need to use POST request - you can change the method to DELETE in the Post action
At least this two extensions works only then you use fingerprints:
veepn majdfhpaihoncoakbjgbdhglocklcgno
hoxx nbcojefnccbanplpoffopkoepjmhgdgh
Example: vpn1.xml
