I don't charge postage on most of my items and send them normally through the Royal Mail as it actually makes more economic sense to do this and need to send out the occasional replacement when the posties steal or eat the sold items than to send everything recorded and charge for doing so. I have just had a couple of negs for 'Item Not Recieved' from buyers who made no attempt to contact me to let me know this, even though I state in my listings that people should get in touch if this happens.
I have also got 4 'Item not as described' ratings in detailed seller ratings, and again I have had no contact from any buyers complaining about this.
Anyone got any advice on what can be done to prevent this in future or defend myself if Ebay want to shut my account?