Harassment and rude call center agents!!!!!

In May 2018 I lost my job suddenly and had no way to pay my FNB loan which I had taken out a couple months before loosing my job. I filled out paper work and sent to FNB who agreed to cover the loan for 6 months but refused to cover beyond that point. It was exactly a year that I sat at home without work and couldn't find work. During this a time he payments fell behind on my account and the account was handed over to Ismail Dier attorneys with whom I made arrangement's to pay R200 a month to both of the loans I have outstanding with FNB. I religiously made payment in May, June and then July. only to last month get a phone call from Brooks and Luyt attorneys who said that they had been given my loan by FNB to collect on. I told them that I had made payment for this account to another lawyer on 1 August. They asked for proof and the email address they gave was returned. I then received calls almost every day from them requesting when I will be making payment. I have told so many people i cent remember all their names that I made payment. Oddly I then got a random call from a African male telling me that the R200 ids not enough and I need to settle the outstanding R18 000 immediately. I told him I cannot afford it and he got rude and told me I have to. I told him that all i can afford to pay is R200 and he refused. telling me it is unacceptable and that I would need to submit 3 months bank statements, Budget and expenditure and 3 months pay slips. I currently earn R15000 before deductions. Have a bond of R7500. Car payment of R2500. Cell phone of R750. School fees of R500. Petrol to get to work is R1600. Food for my family is R2500. I've already exhausted my salary and I haven't even mentioned our electricity consumption, and rates and water account yet. So I drafted everything and sent but it came back. During this week I have received numerous calls daily and eventually on Wednesday got hold of another email address to forward the documents to. I did this as well as forwarded proof of payment for deposit I made on the 2 Sep. Yesterday I received calls and today I have received another call from the most despicable rude man (sounds like the same person I had last time). After hearing he was calling from Brooks and Luyt I said look man If I can stop you there I already submitted my papers on Wednesday. He rep**** that I can talk to him once I have confirmed my ID number. And if I refuse to confirm my ID number he will put the phone down. So I said Im just trying to explain to you what Ive done and he said again that I can only talk to him if I confirm my ID number. I then proceeded to do this and then he repeated to me what I said about documents being email. So I said oh so you were listening to me. Then why not just answer. He kept quiet. I asked is he there. He rep**** that he is done talking to me. Is there anything else I would like to say. So I said yes, you are rude. He said thank you for that. I said I would report him. He said i am more than welcome to. Firstly the amount of calls you receive from this company is completely ridiculous. They hound you from the morning until the afternoon. Then on top of it the people are rude and the attitude they give you is completely unacceptable. I am making a payment with all the money I have available and yet they are not happy. This is the worst company and service I have received.