Reply To: Contacting Hilton

[John]

X is the best Hilton customer support method.

Use Skype to call the US number for free (may need to set your region to USA) +18884466677

To get to the Diamond desk on the phone, you need to pass security by setting a 5-digit US style zip code on your Hilton profile rather than a UK postcode

Not sure how you think you got to the diamond desk with your initial query, but the diamond email address is not it.