Not happy with service from dstv

I had a price lock with dstv which has been paid up so I called them to find out I'm done paying them so when I called the first consulted could not tell m that he said he cannot see that on his system and dropped the fone the following day someone called me from dstv told m that I have finished paying the price lock den I ask him that I want to have another decoder explora he said someone will call m then I was called by a lady from their price lock department we make arrangements and she told m abt the promotion they r running of 499 for 12 months I took it then she said the decoder will be delivered within 7 days the seven days past I called dstv Customer care to find out what is happening was to to sms which I did I got an sms saying I will be called within 72 hours that did not happen yesterday late u was called by a guy who said he is the technian to install the decoder has been delivered I said no n when was it delivered we ended up fighting I called dstv Saturday morning to find out what is going on to my surprise the first consulted I spoke to she could not help or assit m when I asked questions she keep on putting m on hold for a long time and dropped the call I called again the same thing happened with the different agent so I want to know this is how dstv treat their customers until today I have not been called or told when will I receive the decoder instead I'm treated rude n unprofessional when I called in so i want to be called