I’ve got a WhatsApp contact for O Pillabán. I hope it’s up to date. I will let you know if and when I hear back.
BTW, not to take this too far off-thread, WhatsApp is a very easy, fast, free messaging method to communicate via wifi. It is extremely popular in Spain. Even if the pensión or hotel owner doesn’t speak English, they will definitely speak enough to understand your request for a room on a certain date. It also has the benefit of giving you a written record of what was agreed upon in case of a mix-up. Some don’t use it becuause of privacy concerns, but I am not exaggerating when I say that every one of my Spanish friends uses it as the primary method of communicating. If you’re not turned away because of privacy concerns, I would definitely suggest that you download it onto your phone and invest the time to learn how to use it.
My favorite little WhatsApp anecdote. I was in WhatsApp contact with a US pilgrim who was walking the Madrid last September. He was getting concerned because he had called Ray y Rosa to ask about spending a night in their place in Manzanares. No response after repeated phone calls. I suggested he send a WhatsApp message, and he got a response in minutes.