There is an entry for a Neil A READER
Date of Registration NOV 1984
District : Tunbridge Wells, Kent.
Volume Number 16
Page Number 1143
SPouce NAme : Lynne D WIGG
you are best off ordering from the GRO direct.
https://www.gro.gov.uk/gro/content/certificatesAncestry charge double the price for simply ordering it from the GRO on your behalf.
You will need to register first. Then just follow the options, apply for Marriage certificate, you know the GRO information which is above, so check that box, put year 1984 in box and rest is self explanatory.
Hit a Brickwall? Have you lost all trace of someone? Do not despair, simply make a note they were abducted by aliens! Don't believe in aliens? No problem, just write them off as having disapeared in a time portal