NOTE: Mostad accounts are suspended when payment is not received by the end of the billing period. There are three emails sent within a week letting you know that your account will be suspended if payment is not received within that timeframe.
1. Log into your account at https://cloud.mostad.com/login/
2. From the home screen, click on "Account Settings".
3. Scroll down to the bottom and click on "Update Credit Card Info". You can then enter and submit your new credit card information.