Vodacom suck, no regard for customer service

I am extremely upset with the way you run your systems. I called last month regarding a bill I was not happy with the consultant I spoke to reassured me that I was owed by vodacom something about a credit note done so I would not be debited for the month of June then I get the biggest surprise of my life a bill of R3841.01, I phone to ask why the bill is so high I get told no it's because they did not debit me for the month of June and again this credit note nonsense. What if I don't have this money to pay, this lockdown has taken a toll on the whole economy and my budget and how I now have to run my household, you a credit provider whom I trust and have been doing business with for the past 4 years do things like this. It is very disappointing and sad. I hope you can one day improve the way you do your things and take your customers into consideration. And stop promising to call your customers regarding feed back and then don't ever call back and then we get surprises like this