The $6 does not apply to the Residential deliveries with thr Duopak or Duroletter and does not apply all of the time to parcel deliveries. As an example, registered companies in a residence are excluded from the $6 surcharge.
You can also ship COD for $15 surcharge which gives you a new billing method if the customer wants to pay the $15.
I didnt have an opportunity to speak to the Greyhound rep today, hopefully I will tomorrow.
Malcolm