Price Lock deal

We have tried to sign up for the price lock deal. My husband works overseas and I have phoned the call centre numerous times. He has even made an international call to try and get this deal sorted. Nobody ever returns our call as promised. The matter gets escalated to the DPP department but we still hear nothing. My husband is visiting the country this week and phoned DSTV again. After the agent told him he was lying about previous calls made he asked to speak to a supervisor, Prudence. She promised that he would receive a call yesterday after 2 hours & that he should contact DSTV again should this not happen. Two hours passed, no feedback - no surprise. Now we cannot get hold of Prudence again and every agent we speak to is unable to transfer us to her. This service is absolutely pathetic. Don't advertise a deal if you cannot provide the service required to sign up for it!!