Read and sign the start pack — health and safety, safeguarding, privacy, site rules — then your contract. Nothing can be paid until the contract and your personnel details form are back.
See the hours the line producer has confirmed each day: pre-calls, overtime, broken turnarounds and per diems, priced against your deal.
Raise one weekly pack: your core fee, the production-confirmed extras, and your box rental as a separate document. Submit before Sunday to make Friday's payroll run.
Follow each invoice through approval to remittance, and keep every signed document in one place for as long as you need it.