I have just phoned 151 and that part is free,a auto voice answers offering 1 of 3 options,no matter which one you select you are told to dial 0845-454-111 which is charged at 25p pm plus 10p connection charge.
Hardly a free service
Dell XPS 13 9370 (2018) review
Best Keyboards for Designers & Artists
What to ask Siri on the HomePod
Meilleurs VPN (2018)