Abasa Vehicle Finance I still owe them even though I settled my account.

I bought my car with Absa Vehicle Finance,I get my statement every month on the 15th. On the statement they show two amounts the settlement value and the balance carried forward. Last month I received my statement which shows two amounts as usual on the 3rd of September I paid the settlement amount shown on the statement,today I called to get Original Natis papers and paid up letter I was told I still owe R1100 that I don't know and was not shown on my statement and I don't have balloon payment on my account.