User Activity

Buyer has requested a cancellation for one item after buying 7 items and I think because its all on one invoice it wants to cancel the whole order which is not what we want. Can someone tell me how the buyer can retract the cancellation order or what...
Can someone please tell me how to change my listing for some reason it is in us dollars and I want australian dollars this has not happened before thankyou
I have received an abusive email for no reason at all how do I forward it to ebay