I know that the stamps credits are available in the consumables report, but that report is not scheduled, so I ultimately forget to go look and who-knows how many invoices don't physically go out (super important now that many e-mailed invoices go to junk)! Please either send an automated alert if SMS or Stamp credits are getting low, allow us to set the system to auto-purchase more credits, or at least allow us to schedule the consumables report so I can at least monitor it.