Thanks mbselections00 ..I contacted the buyer last night and she wrote straight back and it appears to be exactly the same situation as what you are stil dealing with ..

Her first message .."Oh No ..I definitely typed 5 stars.The dress was perfect and you were marvelous to deal with.I don't know why it showed up as 3 stars.How can i fix this ? I am so sorry..I don't know why this happened.I am more than happy to contact eBay and let them know there has been an error etc "

2nd message this morning after I had explained how the defect affects me as a seller and gave her eBays phone number.

"The phone lines don't open until 8am so I won't get a chance to ring them until tonight.In the meantime I have sent them an email and explained my error.Hopefully this will help, but rest assured,I won't give up with eBay until your good rating is reinstated."

So will see where we go from here and will post any updates.