Jeff,
It appears that the points for the different sizes are calculating incorrectly. We will look to get it corrected.
Points are valued at approximately 50% of the dollar amount. $100=50 points
In the mean time, if you ordered 5 gallons and did not get the proper amount of points, get in touch with us and we will get them manually added to your account.
Thank you for bringing that to our attention.
Ryan