DSTV(Multichoice) don't care about their clients

I app**** for DSTV "price lock" in June 2019. After a 20 minute credit vetting I was approved and advised that the decoder would be delivered to me within the next few days. Nothing happened. I followed up with DSTV in August and went through another interview. I was told DSTV would prioritise my decoder delivery. Nothing happened. I again called DSTV in November and was credit vetted again. They advised that "something went wrong with my delivery" and because of the time lapse I would have to re-apply and that the price lock could not be backdated to June. So again I went through the credit process and was told that the decoder would be delivered same day (if possible), but no later than the following day. No delivery. I called again yesterday. DSTV are unable to advise what happened with the decoder, but requested that I sms my address to *120*378872# and that someone from DSTV would then call me and resolve my problem. I tried 20 times to get the sms through, but there was an error on the line. I called DSTV and was told just to keep trying. Today the sms still won't go through. Really ****ty service.