- The Most Rev Justin Welby read law and history at Trinity College, Cambridge and began his career in the oil industry based in Paris and London, where he worked on West African - mainly Nigerian - and North Sea projects.
- He became a group treasurer in a company called Enterprise Oil, before resigning in 1987 after 11 years in the industry to train for the Anglican priesthood.
- He has also served on the parliamentary Banking Standards Commission.
The Archbishop of Canterbury has told Wonga that the Church of England wants to "compete it out of existence" by supporting credit unions.
The Church of England plans to expand credit unions as an alternative to payday lenders - but what are they?