Vodacom useless as always

Vodacom tried deducting a debit order which is scheduled for the 1st of the month on the 28/09/18 which also happens to be a Sunday. Then my bank charged me R100 for an unpaid fees as the debit order did not go through. Now Vodacom sent me a bill for the R411,58 debit order plus R100.88 with no explanation. On top of all this the don't even call me to resolve their stupidity but sends me and SMS telling me to contact them. 1. Why would you try to deduct money before the agreed date? 2. Who is going to pay the R100 to my bank for the unpaid debit? 3. Why would you charge me an extra R100.88 for your stupidity? Vodacom is truly losing the plot. What a waste of time. And no one will even attempt to contact me.