In writing to FTD Membership Services, 3113 Woodcreek Rd, Downers Grove, MI 60515 BEFORE Jun 21 (cut off for Sept - Dec Directory)
Send it Certified, Receipt Return...........
In your "letter of voluntary termination" state your intentions and reasons for termination and stating after such and such a date, no orders will be sent nor received for delivery through your mercury system nor by phone. (such as one week after you send the notice or a date you choose such as Jun 30)
After your receipt is returned, again send a merc message both to member services and your rep with the same notice...
Your job is done then with paperwork, copies, and acceptance at headquarters to prove your intent and dates of voluntary termination.
Good Luck !