If you are wanting to pay on an invoice, but do not have access to the online billing account, you can make a secure online payment from the Make A Payment page of our website at https://www.dev406.com/make-a-payment/ 

1) Browse to https://www.dev406.com/make-a-payment/ 

2) Enter the Amount you want to pay.

3) Enter the Invoice number or the account number.

3) Click the Make Payment button.