Cha-ChingAsk a cash-on-delivery seller what their return rate is and you will usually get one number covering two completely different events. It is worth separating, because the two have different causes and almost nothing in common as problems.
Refused is a decision
A refusal is a customer standing at their own door, looking at the parcel, and saying no. They were reachable. They were home. They declined anyway.
That is almost always a confirmation problem. Either nobody rang, or somebody rang and the call did not do its job — the total was not read back, the delivery charge was a surprise, the colour was not what they pictured. Every one of those is fixable on the telephone, which means a refusal rate is a number about your call centre.
Returned is an absence
A return is the parcel coming back without the customer ever deciding anything. Nobody home across three courier attempts. An address that does not resolve. A parcel damaged in transit. A city the courier quietly does not serve.
That is a logistics problem, and no amount of better calling fixes most of it. A return rate is a number about your courier and your address data.
Why one number hides both
Suppose last month was 18%. If that is fourteen points of refusal and four of return, your call script is the thing to work on and your courier is fine. If it is four and fourteen, your calls are working and you have an address-quality or coverage problem that no script will touch.
The combined figure cannot distinguish those two months, and they call for opposite work. Which is why the platform records them as different outcomes, counts them against different rates, and will not let anybody collapse them into one chart.
Both over shipped, not over total
One more detail that trips people up. Both rates take shipped as their denominator, not total orders — only a parcel that actually went out can be refused at a door or come back from one. Using total orders drags both numbers down in proportion to how many orders you cancelled on the phone, which is to say: the better your confirmation gets, the better these look, for no real reason.