The most common reason a Re-Up Auto Purchase doesn't process is due to the MAXIMUM Re-Up Charges per month. If this amount has been reached within a 30 day period, the system will not process any more Re-Up transactions. 

To check the limit and adjust if necessary, follow the steps below: 

Step 1. 

Go to the Client Admin

Step 2. 

Click on the Edit Button for the Client Account in question. 

Step 3. 

Go to the Billing & Preferences Section

Step 4. 

Find the Re-Up Auto Bill Feature and click the Configure button. 

Step 5. 

Check the popup to see how many times the Re-Up has run in the last 30 days and has it reached the max amount.