Don't call NDA to assist with your debts

I regret ever calling NDA to assist me in paying my debts, they couldn't help me then this morning they called and I asked them about the money they say I owe them, then this woman told is for paper work, paper work for R7000 that is ridiculous that's madness, I won't be paying that money they didn't assist me now I'm behind with my car instalment because of NDA they should close their company clearly they don't what they are doing its all empty promise then they claim people owe them money for paper work angry customer