Bad Service from DebtSafe South Africa

I started wit DebtSafe more than a year ago in 2019. Their service was really good and I recommended them to all the people that asked about them. I was really happy with their service. But as of 3 months ago with the onset of this Covid-19, and the cut of my salary, I have been hugely let down by them. I emailed them to inform them about my 20% cut in salary and the fact that I could no longer honor our agreement in full untill my situation improved. They responded asking for proof from my employer. I sent them a notice from my employer and since then I have not heard a word from them. I have since then, for the past 3 months, emailed them numerous times and they keep on ignoring my correspondence. They keep on deducting the full amount by debit order every month. I am to scared to just simply reverse the order out of fear for persecution. Can anybody relate to this?