Thanks - no we live in South Croxted Road.   A new development of shops with flats above and a doors surgery is being built next to the Tesco Express.  I think the problem is that couriers simply enter the correct  postcode for 21 South Croxted Road  in their satnav search and don't use  a map, but somewhere in the system theres an error which takes them instead to 21 Croxted Road - or vice versa.   