VODACOM bad service

I have a contract with vodacom since last year which an amount of r250 at the end of 2019 Dec no debit order was made from Vodacom..i let it go and end of January was the same...i let it go again end of February 2020 the phone was put blocked and i phoned in to ask why no debit order was made since December 2019 and now the phone was blocked which i chose a debit order because my working hours do not allow me to go pay things myself or keep tabs with all my debit orders going off from my account iv never missed a payment and my account have never been left with no money and im told by vodacom consultans my account shows insufficient funds and i should go to my bank to find out why they cant deduct im being treated like im lying and now i have to pay almost a r1000 jus to get the phone to go back on and not get blacklisted or a bad pay record im very dissapointed in Vodacom really bad service and both times i contacted them the consultants had no way of speaking to me aswel when i was not rude at first just hope this does not happe to anybody els