Customs pricing declaration should reflect discounts

Some of our customers are pissed because during black friday they had to pay more for import fees due to shipstation automatically setting the customs value to the full price and not taking into account discounts. They first said this is policy and Canadian customs requires the actual price and not what a customer paid. I contacted Canadian customs and they said this is not true and they want the value the customer paid for the item. When i told Shipstation this they recommended manually changing the declaration pricing on each international order and said to leave this issue as a "feature request" here. So here I am requesting Shipstation makes a feature that complies with other countries import laws. Weird I have to ask for that but yes this "feature" would be nice to have and I find it strange its not something thats already implemented