Bank want to repossess the car despite evidence that I would be able to pay on the 25th of March

Discriminated for an arrangement I bought a car and was finances by MFC a Nedbank subsidiary. I paid R8000.00 on the 25 of February as is the day which I receive my salary. This is not the first time I pay the account before the 1st of the month. The manager known to be Charls called me that my account was in arrears. I asked them why? I was told I paid on the 25th while because their system is aligned to reflect money on the first. I tried to argue with them that I have paid. They know I was on Debt review and in January they needed their full areas. I paid them. They instructed the company to recall the car unless I pay the outstanding according to their records. I pleaded that the 25th is left with less than 7 days. The management issued an instruction regardless of the fact that I paid. Where do I get the R6900 now. I pay R5100 suddenly this account is R6900 charging interest upon interest to make it difficult. The car is repossessed because I paid on the 25th instead of the 1st of March I consider this to crazy and a deliberate move by the bank to hurt me on taking a car I have paid more than R5000 00 thousand. I am seeking for an intervention to MFC not to repossess. The what is termed arrears of not paying on the 1st is unjust and used to pave and exploit the consumer. The fact of the matter is I paid R8000.00 and left other accounts not paid and prioritised MFC. I am very disappointed by this bank. I do not owe them.