I bounced this off the Hilton board with little response, so I'll try it here:

I redeemed some Aadvantage miles for some Hhonors certificates. Where have people sent them in the past?

One rep was unsure of the address, and the next told me to fax them in, which I'm a little uncertain in doing.

I'm hoping that someone here has done this transfer in the past.

Thanks in advance