painful expirience from (no ) multichoice

I have been with multichoice for over 25 years on the Premium package. i have recently gone on pension and thus decided to downgrade to a R600 package. i had called and was promised a pensioners discount and that i wpold be paying R300 for a fixed amount fo two years. this was done because they realized they are loosing customers. but since the agreement a month ago i called because i was billrd th normal R600 . when i enquired i was told for the agreement to be effecttive they would have to call me and a manager would call to sort out the misunderstanding but no call has been made. also my dstv live stream freezes catch is not working. whenever i call i am on hold for more than an hour and when i request a supervisor or manager im told they will call me back none of this has happend. the last reference numbers for my call is ***6-I378 , ***6-i734, ***6-i372. my dstv live stream doesnt work its frozen and so is catch up. this has been happening for the past month with no help from dstv.