Poor service

I have been trying to make contact with Dr van Zyl's rooms to set up an appointment for approximately four to five weeks now. When I call, a message tells me the lines are busy but then I am unable to leave a message as the mailbox is full. I have contacted their Benoni rooms who advised that only the Vanderbijlpark rooms can make the appointments. I advised the Benoni rooms of the issue, and the lady kindly sent a private message to the receptionist in Vanderbijlpark to contact me. This has been on two occasions and to date I have heard nothing.