Thank you for your reply.
I have been given:
Lat (WGS84) N51:30:18 (51.5050851423751)
Long (WGS84) E0:16:52 (0.28116063740638003)
Lat,Long 51.5050851423751,0.28116063740638003
but I do not which ones to use.
South Ockendon, Unitary borough of Thurrock, South Essex