Payments and Vodabucks

I settled my bill of R5238.00 however it shows I have an outstanding amount of R2800.

For 6 months i have also attempted to cancel 1 of the recurring data bundles on my contract but so far no one has been able to assist me. I keep on being told that it can only be cancelled on certain dates of the month.

I did the payment through the app, therefore it should reflect instantly and my vodabucks should also be allocated instantly.