"E-Rewards will not allow more than 1 Hilton Hhonors redemption every 90 days either to:

the same Hilton account from two different E-Rewards accounts
or
two different Hilton accounts from the same E-Rewards account

I've tried both and they both fail! "


I will ask the obvious - so you can have multiple e-reward accounts and post from all of them to HH account as long as you stick to the required 90 days period?
I was always carefully converting from one e-reward acct. to Delta and from the second to HH, making sure I never cross reference them thus avoid both of my e-reward accounts being closed.