Ameren does not allow an account to be on both SBO and budget billing at the same time. When Ameren receives an enrollment requesting SBO for an account that is on budget billing, the account is removed from budget billing.

A budget balance due develops when a customer has paid the predetermined budget billing amount each month, but the net of the budget billing amounts paid over a given period of time has been less than the cost of the account’s actual usage over that same period of time. When such an account is removed from budget billing and placed on SBO, the budget balance due will be billed by Ameren directly to the customer and will not be communicated to the RES in an EDI 810 transaction.

Ameren does not allow an account that is in arrears to be enrolled to RES supply with SBO billing. When Ameren receives a RES enrollment requesting SBO for an account that is in arrears, the enrollment is rejected.

Summary billing is an Ameren billing option in which numerous bills for a specific customer are consolidated into one. An account cannot be on both summary billing and SBO at the same time. When Ameren receives an SBO enrollment for an account that is on summary billing, the account is removed from summary billing and placed on SBO.

When Ameren receives an enrollment requesting SBO for an account that has both electric and gas service points, Ameren will split the gas service point off of the account and assign a new account number to it. The electric service point(s) will remain associated with the original account.<br><br> If, at the time of the enrollment, the account is on Direct Pay (payment of monthly bill is automatically deducted from the customer’s bank account), then the Direct Pay will be transferred to the newly-created gas account and will be removed from the original account.

If Ameren receives an off-cycle enrollment requesting SBO, then the account will be defaulted to the dual billing option for the first billing period that includes the enrollment effective date. After this first billing period, Ameren will then change the billing option for the account to SBO.