Bad service- delayed payment

I have a franchise business in Jane Furse we deposit money daily at the atm. Time to time our funds get stuck in the machine as we can only deposit in side the bank if the money exceeds R8000. They take long to refund the business the turn around time is 5 days they always take longer then that . I am still waiting on the bank to refund my R2050 from the 8th of December, 5 days is long gone and it’s still no refunded. We go to the the bank daily to check they keep saying the funds are paid from my side and they do see that it’s not reflecting in my account but can not tell the reason why