Sorry to hear this and hoping you can locate them.
Regardless of which route they took, assuming normal stages, they likely would have stayed in Pontevedra on about Monday, so you could try contacting the albergues there. They also would likely have stayed in Padrón, perhaps last night, so you could contact albergues there too.
Hi all, my sister Megan Curtis and her partner Tom Carter have been walking the camino, starting in Porto. I believe they are taking the central route but I am not sure for certain. Nobody has heard from them since Saturday (22/05), which is worrying me, because they are usually fairly communicative; they were posting on social media everyday, etc. Last we heard from them was that they were crossing the border into Spain on Saturday afternoon.
Identifying information: Megan is White British, aged 26, with blonde curly hair and tattoos; Tom is White British, very tall, about the same age.
Any information on their whereabouts, or any advice on how to go about locating them, would be appreciated.
Also, and I'm not trying to alarm you, but you could check with police stations in that area for any foul play situations they possibly have come across recently which would probably eliminate some of your concern.