Although the woman clearly has extremely poor customer service (and has most definitely wronged you by that), there is nothing actually wrong with her payment methods
We don't actually have money orders in the same sense in the UK. What we do have, which works in a similar way, are Postal Orders. You get these from the post office, and the seller can cash them at theirs. There is a percentage fee to buy them, but not to cash. These are available in some other countries, but this is generally limited to certain members of the Commonwealth (I can find the link if anyone is interested).
Money Orders are different. They cost a fortune to cash here. I myself will not accept them from anyone, due to the fees incurred.
That will be why your usual outlets were unable to help. I think even MOs in £Sterling would incurr a fee to be honest.
Ebay itself is partly to blame for a lot of the confusion on them. If you view a page on ebay.co.uk, it will state postal order, but if it is viewed via ebay.com, it will come up as money order. It does not work the other way around.
I've had the same problem the other way around as well... US sellers who only accept MOs - which I can't get since Bidpay went. Therefore, I don't bid
HOWEVER, the way she has treated you is appalling and she definitely should not have given you a negative when you were trying to find a way to pay her. She's a name I will avoid for certain
