Un explained charges

I had a business account with Absa and when I went to cancel I was told that I have to pay R430 of which I don't know what it's for because the account is up to date, and when I called the call centre the consultant told me that they can not see any accruals or outstanding amounts.

So why am I being charged for something I don't know. It's a debit card, and there's no outstanding funds. AND NO ONE CAN EXPLAIN WHAT IS FOR.