Landlord and tenant – Service charges. It was accepted that the power of the First-tier Tribunal (Property Chamber) to review its own decisions was limited to doing so on a point of law which could provide a ground of appeal under s 11 of the Tribunal, Courts and Enforcement Act 2007. The Upper Tribunal (Lands Chamber) so held, among other things, in the course of hearing the appellant landlord's appeal and the respondent leaseholders' cross-appeal concerning the leaseholders' liability to contribute towards service charges as set out in three invoices in relation to certain calendar years. The appeal was allowed to the extent of £70,902 which had been properly included in the service charge for 2014. However, the appeal in respect of the balance of the sum of £557,557, as set out in Invoices 1 and 2, was dismissed. The cross-appeal was allowed except to the extent of the same sum of £70,902.