Alitalia kicked the can over to Delta (basically saying: Yes, you're right! But not our problem, go talk to Delta since they wouldn't let you on the plane).
Delta did not respond to Alitalia's mail, I had to prompt them, and I got this response:
Dear Mr. Boardman,
RE: Case Number 3601924
Thank you for contacting us. On behalf of everyone at Delta Air Lines,
I appreciate the opportunity to assist you with your concern.
We have your correspondence from Alitalia Customer Relations. In order
to fully assess this matter, please let us know the exact nature of your
concern.
If you will please reply to this email and refer to case 10492324, I
will respond as quickly as possible. Alternatively, you may forward the
information to my attention at the following address or you may also fax
us this information at 888-286-3163.
Delta Air Lines
Corporate Customer Care
Department 980
PO Box 20980
Atlanta GA 30320-2980
Or, use the following address for overnight deliveries (Fed Ex, UPS,
etc.)
Delta Air Lines, Inc.
Corporate Customer Care
1030 Delta Boulevard
Department 980
Atlanta GA 30354
Mr. Boardman, I thank you again for writing. As a valued Delta
customer, your business is important to us and we will be in touch with
you as soon as we have all the necessary information.
Sincerely,
Kathleen P. Parker
Coordinator, Customer Care
Delta Air Lines
So of course I thought "I've already written this up, doing a blog post was a great idea, here we go!" and wrote back:
Hi Kathleen,
Thank you for your response. This is case 10492324.
I have detailed the matter at http://www.myshoggoth.com/2011/05/dhs-and-alitalia-ruined-my-saturday.html.
Please let me know if you need any further details,
-- Andrew
Dear Mr. Boardman,
RE: Case Number 3601924
Thank you for your additional comments concerning our recent exchange of
e-mails. On behalf of everyone at Delta Air Lines, I appreciate the
opportunity to assist you with your concern.
Please know that we are unable to open the link which you have provided.
In order to fully access this matter, please address your concern in
text format.
Mr. Boardman, we appreciate the opportunity to responding to you and
therefore look forward to receiving your prompt response.
Sincerely,
Kathleen P. Parker
Coordinator, Customer CareDelta Air Lines