According to the Bolivian Ministerio de Relaciones Exteriores (foreign affairs ministry) website, which publishes lists of which countries need visas and which don't, it would appear neither one of you do. See the list here and look for POLONIA (Poland) and REINO UNIDO (United Kingdom).
This is for TOURIST visas. It does not apply to those who are moving to Bolivia to seek residency, by the way. Only tourists.
May 30, 2012
hi by: Anonymous
Hello, None of you need tourist visa to visit Bolivia, once arriving at the airport, you will be led to immigration offices to explain that you enter as tourist, good luck!