I received this e-mail from my host.
Below you will find our upcoming POINT MULTIPLIER DAYS. When
you play with your Harrah's Reward card from Midnight to Midnight
you can
Double or TRIPLE your rewards credits! Platinum earns 2X points.
Diamond and 7Stars earn 3 times points!
Example:
You made 50 BASE Reward Credits on May 27th. If your Platinum you
will earn 100 Reward Credits. If your Diamond or 7Star you will earn
150
Reward Credits.
Get more bang for your buck and come in during these times:
POINT MULTIPLIER DAYS
June 5th
July 10th
Aug 28
Sept 11
Oct 20th
Nov 19