Yes, that is a great way to speed up your Debt Review program.
When you have extra income (like a tax repayment, a bonus or salary increase) you can contact one of the DebtSafe Debt Counsellors to make the arrangements for you. In this situation, you can also stipulate to which creditor you would like to make the extra payment. Important, do not pay it directly to your creditors without notifying a DebtSafe Debt Counsellor.
If you have enough extra cash to settle an account in full you are also welcome to do that. How to settle an account:
Contact the relevant creditor to obtain a final settlement figure.
Pay the creditor directly.
Send the proof of payment and paid-up letter to a DebtSafe Debt Counsellor so that they can remove the account from your Debt Review and recalculate your payment plan.