To Update your payment information or otherwise manage your Techtool Subscription
Log into your registration account by going to www.micromat.com.
Click on My Account.
Click Manage next to your Techtool Subscription.
You will be taken to our merchant services company, FastSpring, who manages the billing and payment options.
In the menu field at the top, choose Subscriptions.
Choose Update payment method.
Click Add Payment Method – enter in your new payment information.
Be sure to select the new card by clicking on Use This next to the card you will be using.
(If you have more than one subscription item, be sure to do this for each subscription.)