claims to enforce entitlement to holiday pay provided by Working Time Regulations 1998 (SI 1998/1833) reg 14 can only be pursued as applications under those Regulations and not as claims for unlawful deduction of wages under ERA 1996 s.23.
editor's note: this decision has now been shown to be wrong - see Ainsworth & ors v Commissioners of Inland Revenue HL 2009 UKHL 31 on 10th June 2009.
For relevant general notes see Working Time Regulations/holidays .