Dstv account suspended again

I have been a dstv/multichioce customer for 6 years, and have experienced few issues-until recently. I changed employment, which also required a change in banking details and debit orders. I have been disconnected and subsequently reconnected about 5 times. My debit orders have been changed from the 25th of each month to the 31st of each month, which we have asked dstv/multichoice to amend. And yet we find that come the 25th of the month our account is debited. Today we decided to cancel our account permanently, and after trying six of the numbers listed as dstv/multichoice call centers or service centers, not a single number worked. We tried the following: ***,***,***,*** and ***. Apart from hello Peter, how do we contact you Dstv? What happened to the previous six trouble free years?