Questions on the scheme as a whole, and specifically on the 'Core Group', should be directed to the Department for Business, Energy and Industrial Strategy (BEIS):
Warm Home Discount tel: 0345 603 9439 (Monday to Friday, 9am to 5pm)
We take allegations of fraud very seriously. To find out how to report suspected fraud within a government environmental or social programme, or to learn more about our role in preventing fraud, please see our section on Counter fraud.