Hi there Leggie and welcome to the forum
As a DMP is an informal agreement you are not obliged to use your redundancy money to pay to your creditors.
However, it is advisable to use this pay out to put towards your debts as a DMP can take a long time to clear as your debts are not usually written off and also does not offer protection from further action.
It may be possible to make early settlement offers to your creditors with your redundancy money to clear your debts quicker.
But no as far as I am aware your creditors are not able to ask for this money.
I am sure other posters here will add to my comments.
I hope this is of some help
Melissa McDonald writes articles and blogs about debt solutions and how they can be implemented. She aims to reassure people having debt problems that they can be debt free!