****** by the Insurance for existing damages

Last year February I was in an accident with a guy who belong to MiWay Insurance, He decided we must not call the police since the damage to his car was not that much it was just a minor scratch on the bumper. I offered I will fix his scratch at the panel beater the next day. He never called and answered my calls. He then went to claim. I was called by MiWay Insurance around April to tell me they are claiming back their money for the accident. I was surprised and then never heard from them again. In July was contacted by lawyers saying they need me to pay R31000 for their client. Then it went quiet again, In November i received an email from them again and then I called but there was no answer. So this year February I was served with a summon from court claiming the R31000. i went to my lawyers and then we agreed that we will pay. I offered to pay R300 monthly and top it up with R2000 every December, this was rejected by the lawyers, i went to Twitter to cry out after I received the photos and the invoice from them that claimed and changed the bumper that has only a scratch with a brand new one, to add it up they hanged the lid also which was already damaged during the accident. i was then told that I must remove my tweets and they going to sue me for defamation. So it has been hard with them and a lot of threats even when I am willing to pay for damage that already existed and that was necessary. I still don't understand why they changed the bumper with a scratch and a lid that had already been damaged when we bumped. I am scared to even talk on social media or anywhere because I am told I will face defamation. so MiWay Insurance is not fair to me and the hard money I work for. I never said I will not pay why force e to pay the money that I don't have even if they fixed damages that were not caused by me.