Good price too

4-Gang = Brush Chrome Faceplate 11.40 4 * 10A SP 2Way Push Switch 15.96
4-Gang grid mounting frame 1.52 2-Gang back box 0.75 29.63 (34.82 inc. VAT)

2-Gang =
Brush Chrome Faceplate        5.95
2 * 10A SP 2Way Push Switch   7.98
2-Gang grid mounting frame    1.07
1-Gang back box               0.59
                             15.59 (18.32 inc. VAT)