Is there any reason you think the DPA would apply?
If this is another user of the site then it would not.
It is arguable that the site hosters are bound by the DPA but they are not the posters here.
If you have revealed information to another independent person online then they are not bound by confidentiality in any way.
It isn't particularly ethical behaviour on her part but that doesn't make it unlawful. I'm afraid quite a lot of female abuse is lawful whereas most forms of male abuse is illegal and pursued to the fullest extent of the law. That is the real reason that the statistics would suggest men commit more offences - only because the law focuses upon their wrongdoing rather than that of women which is far more prevalent.
Can I clarify anything for you?
I don't know whether you still need a call now that you have my answer above? If not, i can arrange a refund for you. It would save you money of course.
Yes, I will try calling now.
I think that is great. I can't think of any way of improving it.
It is effectively appealing to her better nature. There is no other way of pursuing this. That should not have an antagonistic effect at all.
All the best.