The worst service ever experienced in my life...disgusted

Three weeks ago I app**** for the DSTV explora price lock(worst decision ever) I was approved and I was told that it would take 2 to 3 days to deliver the product, took them 3weeks to deliver the product. I was then given a call to inform me that the delay was that their car got hijacked. Monday the 27th I received the two decoder and their contracted installer came on Tuesday to install the decoder only find out that they gave me the wrong decoders and due to their mistakes I couldn't have access to pictures. it has been 3days now without access to pictures and meanwhile they have debited my account. I have been calling them ever since and all they do is promise to call me back which they haven't done.im stuck with two decoders that don't work and am told that I either I get an installer to install my old decoder back(which I now have to pay from my own pocket or am just going to stay without pictures for a while. this is an inconvenience for me and my family. need to sort out their mess please. They are busy advertising but cant deliver. Don't make me pay for your incompetence please. I spoke to the lerato,ditshwanelo and Raymond and they cant seem to help me. the references I was given are SD ********** AND ********** 0-I115. IM VERY ANNOYED