trouble

I'm trying to get my central locking working. My van has the central locking relays fitted but I cannot get them to fire off with the remote. I took the door cards off and the relays seem to move when I push the rod manually so not jammed up. All the cabling seems to be connected correctly...

I have a white T4, Panel van. So far, home made MDF Conversion, all temporary fittings, camping stove etc, not fitted to the van and therefor, cannot yet insure as a camper. Which is fine, I understand this. I have however, 18" alloys on there. and for some reason, no-one wants to insure me...