19.—(1) Where the Department has reduced the amount of an award of universal credit as a consequence of regulation 81 of the Universal Credit Regulations, that decision may be revised.
(2) A decision in relation to universal credit which adopts a determination made under the Universal Credit Housing Costs (Executive Determinations) Regulations (Northern Ireland) 2016(1) may be revised at any time in consequence of a redetermination made by the Northern Ireland Housing Executive under those Regulations which resulted in an increase in the amount which represents rent for the purposes of calculating the housing costs element in universal credit.