Urgently need assistance

I have been trying to get hold of people from Omega/Amsa debt for a period of almost a year now. At this moment I'm listed as a slow payer and most of my debts has been paid, but me being on debt review by a company which is non existent will have me in bad finance for life I'm sure. I joined the company in 2018 did the stop order as they requested, thereafter, they just vanished into thin air. A consultant once called me to give me an excuse as to what has happened, this was last year August. Since that time I tried calling again, no help. I really need assistance as this is having a bad impact on my life