Social Security Act 2018, ss 270, 271
If you fail to meet your obligations for the Youth Payment, you may be subject to a sanction (penalty):
For the first or second time, your in-hand allowance (and any incentive payments) will be stopped until you meet your obligations. If you don’t meet them within four weeks, the whole of your Youth Payment (and incentive payments) will be stopped.
The third time you fail to meet your obligations, the whole of your Youth Payment (and any incentive payments) will be stopped immediately.