If you have already paid your bill and your account shows a balance due, the balance due may be for new charges. New balances are posted on the My Account site no later than Thursday. However, the new statements that explain the new balances aren't posted until Friday. To avoid a duplicate payment please be sure to check your "Payment History" to see if a payment has already been scheduled and/or call Customer Service at 619.258.4600 to confirm. Once payments have been made, they can not be cancelled.