Shockingly bad service

What a bad experience. Never been treated like a ******** like this. Thy called to offer me an extension I agreed. But then there was a hail storm in Johannesburg yesterday so I decided to alter plans and not go immediately to the branch to pay just to be safe than sorry.. so the car was due at 5pm of the 18 Oct 2021, at 7 pm of the same day a Mr Govender called me to threaten me that if I don't return the car within an hour they will be recovering the car and it will cost me 3500. Meanwhile a day is like 380 which I probably could Abe asked for immediate payment had he offered me that option. . I then requested for a manager to alter my arrangers which is common in most car reputable car hire companies . He said I should call the emergency line and request for a manager then. Eventually he dropped the line and I kept calling the branch to no response until I decided to look for an alternative number.. imagine that Anxiety. Im appallualed to say the least.. disguting service.