Clear guidance outlining the options available to creditors when making a claim from a bankrupt individual, or a company that has gone into compulsory liquidation, has been published by the Insolvency Service:

Claim money back from a bankrupt person or company in compulsory liquidation: guidance for creditors

See also: R3, the UK's insolvency trade body, has produced a step by step guide to help creditors navigate their way through an insolvency process.