Generally, debt management is suited to those with fairly low levels of debt. It offers a short term solution for people needing some time to get back on their feet. It is an informal agreement that will be arranged on your behalf with your creditors.
A debt management company will discuss with you your income and expenditure and you will agree an amount you can afford to pay monthly.
You are still obliged to pay your debt in full, so reducing your monthly payments may increase your length of repayment. However the reduction in your expenditure should help you take better control of your finances.
Always ensure that the debt management company acting on your behalf negotiates the freezing of your interest rates.