Shipping back to SoundQubed is your responsibility because we don't have any control over how the product is packed, the size of the box (which affects shipping charges), or when you'll get around to dropping it off with the carrier.
If we assume responsibility for your shipment back to us, we get hit with extra fees if the label information doesn't match up exactly with the physical package you drop off.
We also don't own the product you're sending to us, so we can't insure the shipment. You have the opportunity to insure your package in case it is damaged on its way to us.