This is something I can answer.
On May 19, 2008, I wrote a letter to Wells Fargo Financial for the same thing (two hard pulls on the same day). In my letter, I stated that two credit inquiries were placed within my credit file on September 21, 2007. I asked them to provide documentation for the reasons they requested two reports. And, if any errors were found, to please remove the inquiry.
Two weeks later Wells Fargo Financial sent me a letter stating that both inquiries had been removed. My inquiries are now at 2.