How can I return a product when replacement had no waybill and no directions for return and tech say not to wait more before returning

Ordered external hard drive with order no. <ADMIN NOTE: Order number removed per privacy policy> in April. Got hard drive, had problems with usb 3.0 on my dell xps 8500.  Dell sent replacement hard drive with order <ADMIN NOTE: Order number removed per privacy policy> on May 6, 2013.  Package did not include waybill and directions for returning first drive.  Asked techs for same but was told to wait and see what was wrong with system.More usb 3.0 problems, hours spent on phone with many techs, each time starting from square 0.  Dell decided to replace motherboard.  Tech replaced it today.  Dell Tech called later to see if things seem okay.  Automated phone call from Dell at 8 Pm my time tonight demanded return of drive, cited order number, said to press star if I wanted message repeated. I pressed star and Dell automated call disconnected.

I have LOST SO MUCH TIME DEALING WITH DELL.  THE RIGHT HAND IN DELL DOES KNOW WHAT THE LEFT HAND DOES, IN FACT THE RIGHT HAND DOES NOT EVEN SEEM TO KNOW WHAT IT IS DOING.

TRIED CHAT FEATURE WITH CUSTOMER SUPPORT BUT THAT FEATURE IS BROKEN AT DELL END.  DO NOT HAVE AN HOUR OR SO TOMORROW TO CALL DELL GENERAL NUMBER, BE REFEREED TO WRONG DEPARTMENT THAT WILL REFER ME AGAIN UNTIL DELL SYSTEM HANGS UP.  (EXTENSIVE EXPERIENCE WITH DELL PHONE PROBLEMS) 

DELL IS POORLY MANAGED, NO WONDER COMPANY HAS FINANCIAL WOES.

*******I WANT TO RETURN FIRST DRIVE.********

  SEND ME UPS WAYBILL AND INFO by email.  LOOK up THE ORDER NUMBERS AND YOU WILL FIND MY EMAIL.  SEND ME AN EMAIL.

WAS HAPPY TONIGHT UNTIL I GOT THE LATE PHONE CALL THAT DISCONNECTED WHEN I TRIED TO GET IT TO REPEAT  MESSAGE. I DON'T LIKE BEING TOLD TO DO ONE THING (WAIT UNTIL DELL DETERMINES WHAT IS GOING ON WITH SYSTEM BEFORE RECEIVING WAYBILL UPS RETURN LABEL) AND THEN HAVING AN AUTOMATED PHONE CALL CHIDE ME FOR NOT RETURNING THE FIRST HARD DRIVE THAT TECH SAID TO DELAY RETURNING.