I used this postbox ME13 52 on Sunday 9th July 2023.
On my iPhone mobile phone I am unsure how to edit the postbox details onto OSM.
Postbox ME13 52 details:
Amenity Postbox.
Operator Royal Mail.
Collection times Mo-Fr 09:00; Sa 07:00.
Ref ME13 52D.
Collection plate CP1D.
Royal cypher EIIR.
Post_box:type Pillar.