You can set up default invoice alternative payment options notes and instructions that will pre populate directly on the invoice.

To do this select the Settings top right > Settings > Invoicing

Then enter in your alternative payment instructions you would like displayed on your invoices and save

Once you have saved your default settings they will pre populate on invoices moving forward.

If the invoice was paid directly to your bank account or via an alternative method please remember to manually record the payment against the invoice by selecting the record payment option. See more via this FAQ on How to Record a Payment on an Invoice