1. Dont panic. 2. These people dont have a sense of humour so dont bother. 3. Phone the people then write (as evidence) and only say I want my address removed from your mailing list.They will try and deviate but you must stray strong. I want you to remove me from your mailing list. 4. You dont need to show then anything. Do not engage in conversation with them. Believe me it will stop.