DSTV - Inept management procedures

The upgrade system for DSTV is really shocking. They have an internet portal which allows you to upgrade. For many years I have paid my account by debit order. Now after upgrading my service they cut off my signal because there was a manual top-up payment I was meant to have made. I was un-aware of this payment, they did not send an invoice or sms telling me that it had to be made, and I assumed it would be dealt with by the debit order. Now I have to pay a reconection fee while I honestly beleive teh fault lies with DSTV's failure to communicate clearly with me. A company with teh standing of Multichoice should have better procedures in place to avoid this