Hi Kaseyshopping,
I see you are a business customer, which means you will have more than one account number since business accounts are placed under a hierarchy. You will need to use your "Parent" account number, which also begins with 'SME' but has less numbers, to register online for billing purposes. If you do not have that number, you can call our business line at 1-800-347-3272 and they will assist you in getting that set up. Please let me know if you have any other questions or concerns.
Thank you,
Amanda