Not being paid by previous employer

macman

You worked 3 weeks, no contract, no written details, you presumably were not deducted NI and tax at source. What makes you think you were 'employed'?

Bruciebonus

Employee"A person in the service of another under any contract of hire, express or implied, oral or written, where the employer has the power or right to control and direct the employee in the material details of how the work is to be performed."