I did consider the extra time and cost for packing and postage, however considering it was not packed in a pre paid and she told me she posted it from work, then it seemed a bit rich.  I think it was more the point of it and not fair play on eBay.

totally irrelevent!

If you were happy with your "Total Spend" then there is no issue.

Consider this . . . . . . would you be happier now if the seller HAD only listed with a $6 postage and handling charge AND more eBayers would have bidded the item up and you had to pay $50 more than what you did pay?  I think not.  Maybe her postage charge put people off bidding enabling you to the item well below you otherwise would have!

As another poster said . . . . move on!