We have three receptionists where I work who were all immediately sent to work from home at the start of the pandemic. They couldn't wait to return when it was announced that the office would re-open mid last year. They came back to the office under flexible working conditions as the occupancy levels were pretty low and there weren't many face to face meetings, however, we have seen an increase in people coming back to the office but the receptionists are demanding to still work from home. They come into the office on a rota basis but they're not willing to cover each other in certain situations which means we are sometimes left without anyone manning reception. We have two other offices and their receptionists are back in full time but it's a struggle to get ours to return and there is not enough work for them to do at home. How do we approach getting them to return without it causing uproar?