Shocking service from DSTV

DSTV (MultiChoice) must have the most useless accounts dept. in SA. Being a loyal subscriber for more than 35 years and never missing a payment they decided to cut me off for non-payment - this in spite of me having sent proof of payment to them. They acknowledge receipt of the pop but for 'some reason' the payment had not been reflected in my account. After numerous calls and being told I owed an additional amount, they eventually reconnected my service. This month I decided to check my monthly subscription before paying and was again told I owed an amount which is totally different again. I ASKED FOR A REFERENCE NUMER FOR MY COMPLAINT AND WAS TOLD THE SYSTEM IS SO SLOW THEY CANNOT GIVE ME A REFERENCE NO. BUT WILL SMS THE NUMBER LATER - NEEDLESS TO SAY I STILL HAVE NOT RECEIVED IT !!!!! In addition I have requested (three times now) to have the payment done on a debit order - the reply 'someone will contact me'. Why do these monopolies think they can have the right to treat their customers so abominably !!