I have received a message from a buyer saying the parcel I sent them is marked as delivered on Ebay but they have not received it. I tracked the parcel on the Royal Mail website and it has been delivered. The buyer says they were out all day and no note was left by Royal Mail and no sign of the parcel. They have checked with their neighbours and the parcel was not delivered there.
They believe the parcel could have been stolen by the postman as one of their neighbours told them the same thing had happened to 2 of their parcels recently. They said the signature for the parcel was just a scribble. To me, it looks like the postman probably signed it themselves, but I have had postmen do this during the Coronavirus situation when they leave a parcel in your porch and they are still doing it now, it does not mean they are stealing them.
The buyer is asking me to look into the situation but I am not sure what else I can do from this end. They say "the complaints must come from the sender" but I thought it would be up to them to contact the Post Office from their end and maybe even the police if they think it has been stolen. I had uploaded the tracking number and it show as delivered so I doubt I myself could claim anything from the Post Office.
Any advice on how to proceed with this would be appreciated.