Pay less, but double the instalment

I recently called Debt Busters to assist me with my debt review process, the agent I spoke to said they could save me some money and that my instalments would be a lot less each month, I agreed and asked for the paperwork to be sent through. When I received the paper work, i realized I would be paying almost doublw of what I am paying now. the agent said to me, sorry this is what the system is generating and he cannot do anything about it.

I just could not understand how on debt review, I will be paying double my instalment amounts each month, I just not understand it