As easy as it gets, go to the Pricing page choose the plan that suits you the most, and click on "Subscribe" Fill in the required details for registration and click "Start Trial" at the bottom, the system will notify you that the payment was successful and you will receive an email with the login details and further step to activate you account within 48 hours from the moment of registration.

Go to "Manage Payments"  on Optima's website by clicking the "Log In" on the right side of the menu, then enter the email you registered with and click Continue, and you will either will be logged in automatically or will get a one-time code to your email, enter the code in the relevant field, and you will reach your payment management page. At the top right there is a "Cancel Plan" button After you click on it let us know the reason why you choose to cancel your subscription. that's it

Go to "Manage Payments"  on Optima's website by clicking the "Log In" on the right side of the menu, then enter the email you registered with and click Continue, and you will either will be logged in automatically or will get a one-time code to your email, enter the code in the relevant field, and you will reach your payment management page. under the "Payment Methods" field, click on "Add Payment Method" where you will enter the details of the new credit card, or preferred payment method. Then you will return to the main payment management page and you will see that the new card appears in the registration By clicking on the three dots next to the cards, you can delete or set as default to define which of the cards is the main, if you want to have multiple tickets for the billing attempt.
of course there is no need to worry about double charging when you have two or more updated cards!

All Optima subscriptions are recurring, but you have the option to purchase a monthly subscription and cancel it before your next billing date, so you'll only pay for one month.