Vodacom is useless - Collections Department

I have been hounded by sms's and emails from Vodacom saying my account is in arrears, make payment immediately. After being redirected a number of times and then being told to phone ***. Call gets picked up immediately, cannot hear anything so have to try multiple times before you actually get a voice and what numbers to push, then on hold for 08:12m because the system is slow today. Then get cut off, but they don't bother to call back. Repeat above experience again. First agent, called cut off, second agent, sorry it says your account is in arrears, you need to pay. I then do a deeper investigation. Vodacom have assigned a payment of R17818.96 to my account on the 12th March. It was only reversed on 1 April, after the scheduled debit order is supposed to go off, so because there was a credit balance, the debit order didn't run, then they rectify THEIR mistake, but now my account is sitting unsettled because the debit order didn't go through because of THEM. Not so much as an apology for the mistake, just bombarding me with sms's and emails stating my account is in arrears. This was VODACOMS FAULT and yet I am being made out to be the ********. If the transaction was reversed, this would mean that it was picked up by someone, and the professional thing to do would be to contact me via email and explain the situation and apologise for the mistake and not make it out to be my fault. It took a 3rd call to *** for this 3rd agent to agree with my findings and then request a debit order re run. Absolutely disgusting customer service. And of course there is no email to write to Customer care either. You have to phone. Calling Account Collections wasted enough of my time for a mistake that was NOT mine. No reference number was given when asked. I was told there was no formal inquiry so a reference number isn't generated - again, pathetic. So if this had to go further, it would be my word against the agents as there is no guarantee that this call would have been recorded, it simply states this call MAY be recorded. Massive corporation, most of the contact is either automated or that useless AI bot on their website too. Do ALOT better Vodacom.