What happens when an employee does overtime but a pay rate is not agreed in advance?
See Mumsnet: How much would you pay your nanny to look after children for the weekend for more info on the situation.
Would it fall back to the per-hour rate as agreed in the contract?
If there is an overtime rate in the contract, would all hours over the contracted hours be done at that rate?
Is there any requirement to pay a higher rate for working on Sundays? (I don't think there is, unless it's stated in the contract)