Family Tree DNA have just announced an upgrade promotion, at an average of 25% off the cost of an upgrade.
Those eligible will shortly be receiving an email with details on how to log in and claim the discount for an upgrade.
Note the instructions in the email:
To order this special offer log into your personal page and click on the special offers link on the left hand navigation bar.
As a check that you are in the right place to order an upgrade, normal upgrade prices are in the vicinity of $US99 for 37 to 67 markers, $49 for each of 12 to 25 and 25 to 37.