Here are the instructions for setting up velocity filters within Gravity Link.
Step 1: Log into your Gravity Link account
Step 2: Click on Fraud Manager on the left side of the screen
Step 3: Click Fraud Modules
Step 4: Select +Add Module in the Universal Fraud Modules section.
Step 5: Click the green arrow on the right side of the screen until you see the Multiple Credit Cards option.
Step 6: Click Select.
Step 7: Set the module for a little more than your expected transaction volume for a given period of minutes (the example below would allow 2 credit cards every 60 minutes):
Step 8: Click Save.
You’re all set!