We went to the Santuario de La Peregrino today to get half way certificate in Sahagun. We paid our entry fees and loved the beautiful museum - on exiting we needed to ask for the stamp, which was given. There was however, no certificates in sight, we returned a few hours later to request the certificate but the reception person advised we needed to give her another 3 Euro. The Tourist information centre advised that the certificate is a gift and does not require an additional payment. Apparently this reception person spoke perfect English but she didn’t let on and was rude. Disappointed by this experience on a route of extremely pleasant locals.