Unfair repossession

MFC repossessed my car without a notice before. The sheriff who was accompanied by a person who introduced himself as a lawyer handed me summons on the same day the repossessed the car. They took the car with my goods that were in the boot which are ( size 6Caterpillar safety boots, R1600 cash Tha and my hp laptop.) and after the car was kept at Gobid.. I went to check on my goods but I did not get them. They also gave me a court order that that says I'm in arrears of R50 000 that I did not understand how it accumulated. They also told me that the price of the car is still the sameR136 000, of which this is the original price of the car when I bought it in 2018. They demanded a total of R186 000 upfront, and they claimed that I never paid for the car, while I paid for it every month from 2018 to 2023. They embarrassed me in front of my neighbors early in the morning at 05:30am. Intimidating me and also make it look like I just after getting the car from the dealership I never paid for it and I am running away from the bank.