Is there more than 1 application for the glowplug relay .Rang 2 places and they say dealer part .Isn't the rover 400,45 200 L series the same as the Freelander?

Any L series - 200 / 400 / 25 / 45 etc etc - either glow relay or the cooling fan relay - all the same unit !.
PN - YWB100560L or YWB100560 (the second part number (less the L) will yield more results.
Even then - any 70A N/O relay will do if pinout is same (and it is standard high current 4 pin pinout)

So they are telling you porkies -

Just ask for a cooling fan or glow unit for the rover (any L series) - or indeed - a cheapo 70A relay from ANY make or model of motor with same pinout - sorted.

Joe

Fantastic, cheers for that ,the next thing they'll ask is what's the reg number of your rover