Vodacom annoying as always

My debit order goes off every month on the 20th,this month the 20th was on a Sunday but obviously the debit order would need to go off the next working day which is Monday but it didn't go off. I call the useless call centre the agents tell me they can see the debit order didn't go off and they transferring me to the finance department,I got transferred like 3 times getting to the wrong people,trust me that is extremely frustrating. I eventually hang up this was yesterday,I called today got someone a bit competent who told me there was a problem with the weekends debit order and they will re-run. Why was this not communicated to your clients,why do I have to follow up,if there was no money you wouldve called me immediately,this is inconveniecing and not acceptable. Please make sure that you warn clients and make proper arrangements. Second bad incident this year,once my contract is done I'm done with Vodacom.