Under debt review yet repayment increased - refusal to assist with repayment or restructure

I have been on Debt review since 2019 - one of the accounts is financed through Ford Credit. I went through a very difficult stage going through divorce and other domestic issues which led to me skipping a couple of repayments however I was catching up on the arrears when they forced repossession onto me and I had to take extreme measures to lend money from loan sharks to save my vehicle. All arrears caught up ABSA vehicle finance decided to increase my monthly repayment to even higher than what I initially signed for when I signed for the vehicle finance in 2018. With no prior notification that this was their intent. My monthly repayment jumped from the agreed amount under debt review of R4720 to R7200 and my initial amount I signed for when I took out the finance was a repayment amount of R5958. I am trying my utmost best to have this account looked at - I have been paying vehicle finance on this vehicle for 6 years the interest is a mounting to 43% of the amount paid already. I am trying to also SPEAK to someone at ABSA as I had a very unfortunate medical event which now put me in arrears again - but I need to please ask for time to catch up again and maybe restructure to make it easier for me. No one at ABSA vehicle finance wants to help me - they even sent their tracers to my home for 1 missed premium and made them demean and bully me for 1 arrears premium threatening me with repossession of my car! How is this treating your customer fairly...? Will someone please help me to either with restructuring this account with a more affordable repayment so I can breathe or give me a couple of months so I can make plans to catch up without being threatened. I signed a contract I agree and I want to pay but why are you breaching your own contract by forcing me to pay more than originally signed for and also more that what was agreed to through debt review? And why is no one willing to help me? I am still under debt review. Vehicle paid for 7 years already where does it end?