posted 2 items via post office 1 item not received so I refunded the customer I now think he should have raised a missing article . When I checked my receipts both proofs have same tracking number how do I go about getting a refund for missing article thanks & I posted 2 items via post office 1 inr so I refunded the customer I now think he should have raised a missing article . When I checked my receipts both proofs have same tracking number how do I go about getting a refund for missing article thanks