Thanks for all your advice and recommendations.
I finally plumped for Surfshark, as it had your good reviews and an incredible offer for black Friday, 26 months at 1.69stg/m plus a further offer on sign up of 12 additional months at 1.72stg/m. I've now got a subscription of 38 months for 65stg, and I got 25stg refund from my cancelled 6 months remaining on my old OpenVPN account.
It was extremely easy to sign up, download install and set up, and I've viewed BBC news live the last 2 days with a good fast connection.