Worst Service Ever

I had two separate breakdowns with my car, and the two incidents were different. First incident was timing chain, and second incident i had a cracked piston. The claims agent there after wanted to treat my piston claim as one claim with the timing chain claim that was approved a month ago. There after my claim was handled by a manager lady called Thato as I was unhappy because the decision was unfair. Now Thato has been ignoring my calls for the past two days. I've been calling every hour or two, even leaving messages for her to call me back and she's been avoiding me. Either they say she's not on her desk, or she's busy on the phone, or she's on lunch! They cant't even give me her direct contact details. I purchased my warranty cash upfront, and this is the service I'm getting!!!!. I'm very angry and disappointing at SA Warranties