reference

• getExcel
  Return an account's next invoice in a Microsoft excel format.
• getPdf
  Return an account's next invoice in PDF format.
• getPdfDetailed
  Return an account's next invoice detailed portion in PDF format.
• SoftLayer_Billing_Invoice_Next
  Service for an account's next invoice. The 'next invoice' is what a customer will be billed on their next invoice, assuming no changes are made. Currently this does not include Bandwidth Pooling charges. Note, this should be considered preliminary as you may add, remove, or change billing items on your account.
• SoftLayer_Billing_Invoice_Next
  Service for an account's next invoice. The 'next invoice' is what a customer will be billed on their next invoice, assuming no changes are made. Currently this does not include Bandwidth Pooling charges. Note, this should be considered preliminary as you may add, remove, or change billing items on your account.