Worst car track company ever!!

I took over a Cartrack contract in Jan 2023 to help a friend. Was told to pay an additional R200.00. Which I did and had to then take out a new contract. No debit orders was missed. Now 17 months later I keep getting emails and WhatsApp messeges to say that I am behind. I phoned them was told I missed a debit order for June, Which I did not. All information was send through. This is also after making a manual payment on the 1st of July and on the 2nd the debit order went through as normal. So I am actually a month in advance. I am however receiving daily emails claiming that my account is in arrears. Please sort this out!!!