I work for a company who are doing the same. It does sound upside down, but if they paid the premium rate on the Monday then all those working on 26th would be get normal working rates and that wouldbe worse. So for us,the premium ispaid on the Saturday, unless that is your day foff that week, in which case the premium is paid on Monday. I work Mon-Fri so will not be in on either day, but those going in on the 26th diserve the premium rate inmy mind unlike BANKS who will be closed.