Progression opportunities exist, but pay structure is disheartening - Area Manager Octopus Energy Employee Review

Pay structure - I would have been on more money if i stayed as an installer taking my cost of livings than working my way through two promotions Installer/TSE/area manager which is disheartening. We have the new pay matrix and though i'm confident my team is high performing and i implement ideas across the region - I feel this is overlooked and i'm not seriously being considered for a performance related pay increase even though i'm hitting all but one KPI and exceed behavioural & core expectations.