Pick up your phone's

I have been on the phone the entire morning. Calling 011 375 5555 and this phone keeps saying they're experiencing high call volumes forever when you get through to an agent the phone with hangs up and puts you through to their Survey or in my case a got to to a lady names Slindile. Who was very soft when she introduced herself and suddenly the call went dead. I stayed in that call for 8 minutes and nothing. I'm on a call now and have been holding for 13 minutes. This is the third time I'm calling in the past month. I need to build a wall and there's a tree that needs to be cut down. It's getting frustrating