You can Reactivate your subscription any time until you billing term ends by using your account page. All you need to do is to click on
reactivate button on account page and approve the action.
Step 1 : Click on
Reactivate Subscription button.
Step 2 : Read "rules & the terms of service", make checkbox to be checked and click on
Reactivate my Subscription button
Once the subscription reactivated, the payment system will continue to bill you as usual every billing term.