Absa motor vehicle installments

Since 2019 I am paying my motorcar instalments on time. Due to a debit order that did not ho off , I payed that amount on time by EFT V. After that I started paying by EFT every month.b. I am not in any arrears. I was contacted by a Jason from Bushveld tracers. According to Absa I did not pay my account for the months Aoril, May and October. Despitec all proof off payments wiith all the account numbers and references the same, they still claim that I am in arrears. After some investigation it came to light that the payments of those 3 months was payed into a different account number which was also mine 8n 2019 for an other car.vHow can Absa then allocate the payments with account number into the other account.. The same payment reference was used the same amount aswell as the same account was used for 36 months. Why then are those 3 months, payed into a other account? Please assist me urgently. *** ***