inform the company in writing of your intention to return the processor? A verbal notice doesn't comply with the relevant legislation.
2. Was the processor unused, and still in its original packing?
3. Can you give us a timeline - dates on which these calls happened, and the date on which you sent the special delivery letter?
Microland must not charge you a restocking fee, provided a) you notified them within the 7 day period (that's 7 days starting the day after delivery by the way). b) The item is in its original packing and is unused. c) You notified them in writing.
You say you received the processor back when you sent it to Microland - presumably because you hadn't obtained a returns number?