Avis had been offering 9000 Club Carlson points for a 3-day rental a bit over a year ago, and then was reduced to 7500 points for all of 2013.
The 7500 point offer for a 3-day rental was set to expire December 31 but has been extended through June 30 using the same coupon code MUHA018.
Be sure to enter that coupon code and your Club Carlson number when making a reservation.
You can earn these points without using the ‘discount code’ that offers up to 25% off of your rental, I usually find these discounts don’t provide the best pricing.
(HT: Loyalty Lobby)