Account owners can change the payment method on their account when logged in by going to https://www.instrumentl.com/card. Alternatively, you can navigate to Account > Settings.
You will then be prompted to update your billing information. Instrumentl accepts payment via credit/debit card or ACH bank transfer.
If you would like to switch to ACH bank transfer and are not seeing that option in your account, please send us an email at hello@instrumentl and we'll be glad to help!
Contact Us 
Reach out to our friendly support team if you have any questions about your payment method. Simply message us via the chat bubble when you're logged in, or email us at hello@instrumentl.com.