I was bumped from amz for 10 days because, it turns out, I was using the "select" rate offered by chitchats for single dwelling addresses. The difference between that and the regular chitchats rate (let alone the even higher cpost rate) is significant and often, outside of cities, dramatic - 40% less in some cases. The courier chitchats works with is intelcom, the very one amazon.ca uses for deliveries to my house. And yet, intelcom is not recognized as a "valid" partner for amazon sellers. I now require higher shipping, which will make fewer sales, which makes less for amazon. A very simple solution would be to add intelcom / chitchats to amazon approved partners. I used these rates for nearly a year before fate caught up with me. Hundreds of shipments and no complaints. If someone at amazon is listening, please speak to whoever makes such changes happen.