I prefer to buy made in UK where possible and locally. I rang Doncaster cables technical who said their main outlets are 'Yes' a company they own, RS Components, Electric Centre and Tool Station. I rang the local branch of YES.
0.75mm sq tri rated single core 24/0.2 £16 inc vat
1.00mm sq tri rated single core 32/0.2 £20.06 inc vat.