Ebay still haven't answered my question

[c0ll-60]

I asked eBay why the price I paid for an item and the price on the invoice was different. Stacey from eBay sent me a mail, a query reference number and a request for more information. I provided the exact information she requested. I waited for nearly two weeks and had no response. I sent a reminder over a week ago. I have heard nothing. I cannot find anything on the site which shows how to complain about eBay's lack of response.

[ruby*tuesday]

There is no Complaints Department unfortunately. The extra Cost could be 20% VAT If you bought from a Seller who is Registered outside of the UK.

I see that you did Buy from the US in the last month.

[c0ll-60]

Thanks, but it was not an increase in price. I bought the item at $93. I received a confirmation of $90 followed by a 'track your delivery' e-mail giving a new price of $79.34. My e-mail to eBay was a query as to why the differences. They requested a screen-shot of the tracking e-mail, which I provided on 3 Jul but it's all gone quiet.