(Convenience fee applied to online payments) If you are not sure of your Mailbox Size or Number please give us a call at 702 739 8877. Remember if your mailbox rental is behind we will apply this payment to your previous due date (Example: if you were due on 1/10 your date will be changed to 2/10 regardless of when you paid). If your mailbox is 60 days past due please call to verify that we have not closed your box. Please choose the correct box size before making payment.