ScottishPower has set up a £1 million customer compensation fund after regulator Ofgem fined the firm over misselling.
Customers who believe they may have been missold to can either complete an online form here, or call the dedicated phone number on 0845 030 3048.
ScottishPower will deliver the remaining £7.5 million through payments to customers identified under the Warm Home Discount Scheme.
For more information on the Warm Home Discount Scheme, ScottishPower customers can call 0845 030 3041.
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A widespread frost across the UK as temperatures fall below freezing under clear skies.
Largely dry elsewhere tonight with a widespread frost and icy stretches