Disappointed with this bank

I am very disappointed with the service or rather lack of the service, the bank cannot give me answers, nobody knows what's cutting with my refund deposit that the car rental company released back to my account on the 29th of September and it's still not showing in my account. Even worse standard bank can see on their system and say it was processed on the 5th of October already but they don't know why it's not reflecting. I have been fighting with the car rental company only to find that my own bank is causing all this inconvenience, I have been calling and calling different people all can not give me an answer and don't even bother calling back when the call disconnects, I mean I am using airtime. today I called in and now they are advising that my profile is blocked I have to wait for 24 hours, first time experiencing this. What bank cannot see transactions or where the money went mxm