In Bateman and others v Asda Stores Ltd EAT/0221/09, the EAT held that the employer was entitled to change its employees' pay arrangements without their consent because it had reserved a clear contractual right to make unilateral variations to their terms and conditions of employment.
In Regent Security Services Ltd v Power [2007] EWCA Civ 1188 CA, the Court of Appeal held that an employee transferred under the 1981 TUPE Regulations could choose to enforce new, more beneficial terms agreed with the transferee, even where the variation was connected with the transfer.
In Wetherill & Ors v Birmingham City Council [2007] EWCA Civ 599 the Court of Appeal held that a local authority was entitled to vary a car allowance scheme unilaterally, but was in breach of contract by failing to provide adequate transitional protection for affected employees.