So disgusted with the service From Vodacom Call Centre

I am so disgusted with the service From Vodacom Call Centre. I am a Vodacom customer all my life and when you need a straight answer from them they always transfer you from pillow to post. I have an existing contract with Vodacom. I had a debit order on my account but because the company I walk for changed the pay date to the 25th of each month I asked Vodacom 3 times to change my debit order from the 25th to the 27th they did not change it for 2 months so when the debit order bounced the first time I paid it manually, I phoned them and asked them yet again to change the debit order and again they didn’t. the next month again it bounced, and I had to do another manual transaction. So, to save myself all the headache on arguing with the “clearly unhelpful” call centre I asked them to take of my debit order seeing as it gives me a bad credit rating to have all these bounced debit orders. I have been paying my Vodacom account EFT promptly every month on the 25th, 26th or the 27th depending on id the 25th is during the week or on a weekend. Yesterday (08.03.2018) I app**** for a small Vodacom contract in store, where Vodacom then declined me. We then phoned accounts and the person there then told the sales person that my account is not paid and that my account is on “late payment”. When I phoned in myself wanting to know where they get this information from, Rhumani then told me that the person we spoke to first does not know what he/she is talking about. Rhumani then told me that there is nothing wrong on my account for them to decline me therefore I need to do a decline review to find out what the real reason for declining me is. My decline review came back this morning (09.03.2018) saying that my application is declined because I am a cash paying customer!!!!!! SO, BECAUSE I AM A CASH PAYING CUSTOMER I GET PENALIZED AND DO NOT QUALIFY FOR ANOTHER ACCOUNT WITH VODACOM??!!??!! HOW IS THAT EVEN REMOTELY FAIR???????!!!!!! Their response is that I should change it back to debit order – which they cannot do on the 27th for me – and wait 3 MONTHS before I apply for another contract!!!!!!!!!! Then people working in the call centre are so rude and unhelpful it is disgusting When I asked to speak to a manager or a supervisor I just got cut off. All I want is for someone to actually contact me and fix this issue on their side and stop making this my problem and penalizing me for paying my account in CASH.