Buy with bitcoin
If you already have bitcoin use https://shapeshift.io/ to convert some bitcoin to Ether. If not, scroll down to buying with GBP.
Select Send from Bitcoin (BTC) to Ether (ETH) and follow the simple instructions. No personal information is needed. Be sure to include a return address in case something goes wrong:
Buy with GBP:
I recommend https://bittylicious.com/, don’t be put off by their name, they provide an efficient and secure system to buy ether from their independent sellers.