https://www.theguardian.com/technology/2021/sep/10/nuisance-calls-could-lead-to-multimillion-pound-fines-in-uk

Ministers considering bringing punishment in line with GDPR, which can issue fine of up to £17.5m

Multimillion-pound fines could be imposed for nuisance or fraudulent calls and texts under a proposed overhaul of the UK’s data rules.