Extremely disappointed client

I have requested a dstv explorer decoder in January 2018. I have received a phone call in the beginning of February 2018 from the price lock department in order to have the decoder delivered. I have contacted dstv call centre on numerous occasions to which i was promised the same thing from each agent which is to get back to me on when my decoder will be delivered. I have not received any feedback from any of the agents.When i called in again i was informed that that they came to deliver the decoder but there wasnt anyone home which was a lie as my mother was at the home and then i was told they couldnt allocate the address which again is a lie as i placed the address on google maps and it was picked up immediately, when asked why didnt they contact me when they came to deliver i was told that as the delivery o free they do not contact the clients. I eventually got hold of a women by the name of Susan Bohile to which she promised to have someone from the price lock department to which she has kept to her promise and women by the name of Ntombikayise Kotelo has contacted me on the 20th March 2018. She has then taken a new address in order to have my decoder delivered and has promised to get back to me when the decoder will be delivered. To date its has been 3 months and i have not received the feedback nor my decoder.