Here what you can expect to receive from Hilton:
Dear Mr. LoyaltyLobby Reader,
Thank you for your inquiry regarding tier match to Diamond. We appreciate you taking the time to contact us.
We have received your information and your account has been upgraded to Diamond through March 31, 2017. Please allow 3-4 weeks to receive you new membership card.
If there is anything else we can assist you with, please do not hesitate to contact us. For immediate assistance, please click on the link below for the contact number of the Hilton Worldwide Service Center location nearest you.
http://hhonors3.hilton.com/en/support/index.html
Best regards,
Sandra O.
Email Coordinator
Customer Care Email Department
Hilton Reservations and Customer Care