********* behaviour with December payments

RAZI00019- hi there. I find CarTrack to be quite unfair. I’ve asked the agents to move my debit order date to the 20th of each month as this is when I get paid to avoid late payment but they never did this until I asked the agent again on 12 Dec 2025. I was then called to say my December payment was overdue and I told the agent I knew nothing about this and they advised that in December they deduct for payments earlier without my knowledge. I then told them I will pay on 20 Dec. Then on 20 December I was debited then on 22 Dec I got a WhatsApp message saying I need to pay as my debit was not processed but on my banking app this was done. This is so confusing and borderline *********. I have the evidence and need help.