on 14-08-2013 01:25 AM
I can't advise as to whther or not you are due a refund, (up to the sellers integrity) but I would most certainly have refunded you the excess, but this seller sounds like she is avoiding eBay fee's by charging OTT postage.
Not much you can do if she will not refund, but I would definitely make my disappointment know when leaving feedback.
You can report exhorbitant over charges in postage to eBay, but really don't know if much is done about it.
Have a look at her feedback and see if this seems to be a regular occurrence with this seller.