Within Teamwork Projects, as an alternative to online billing via credit card, you can by bank transfer via offline invoice.

Note: This option is only available for annual subscriptions.

If you wish to subscribe or move to offline billing, please contact support@teamwork.com with the following details:

Organisation Name:
Tax Number (for customers within the EU):
Are you a Non for profit or Educational Institution?: 
Street Address:
Town / City:
County / State:

Country:
Post / ZIP Code:

Teamwork Account URL: Usually in the format of 'yourcompany.teamwork.com'
Required Teamwork Projects Plan: For example 'Small Office'  or 'Professional'
Your Contact Name & Email:
Your Billing Name & Email (if different):

For more information see: Subscribing to a Teamwork Projects plan