Unable to collect debit order!

I have been trying for nearly two months to get Multichoice to collect my subscription fee via a debit order. Why won't they take my money?!? They continually disconnect my service and then have the nerve each time to charge a R50 reconnection fee for their error. This is staggeringly inept service, and it is exhausting me having to respond each time. I really hope they manage to fix it, but I won't be surprised if they don't...