Change default payment method
From Protemos Wiki
Payment methods: cloud.protemos.com/account-payment-method
To change the default payment method, go to Settings → Payment methods:
Then click "Change default payment method":
It will bring you to the "Update settings" page where you can select the default payment method and define in how many days invoices should be paid:
Here you may also enable or disable an ability to create projects by your clients, select a default client manager and client invoice manager.
For more details, please see the Client portal page.