Just phoned the Consulate in Madrid. Long wait but I was assured that, if the campsite closes the shower block and has no other communal facilities where people may congregate, it will be allowed to stay open and we should be fine to stay if we want to.
If we do decide to set off for home we should not be prevented from so doing as long as we are in possession of an attestation to the effect that we are going to our permanent place of residence.
I cannot tell you how grateful Chris and I are for all the help and support you lot are giving us.
Feeling absolutely drained