Vodacom is USELESS

On 12 Feb 2018, I sent Vodacom an email requesting my debit order date to change from the 15th of every month to the 25th. Then in March I sent another requesting confirmation, I did not even receive a confirmation of receipt email. So in March the debit order bounced again, I then contacted Vodacom and requested the change in date, again, as well as for the R100 bounce fee to be credited. Then in April the debit order came off again on the 15th and bounced with another R100 bounce fee. I called Vodacom to rectify this and after dealing with one *********** person after the next, finally someone was able to assist - I paid the full amount outstanding and was told that my account was sorted and that the next debit order would go off on the 25th of May. I have been trying to make an in-app purchase for the last 2 days (which previously was working fine) so I decided to contact customer care - whom then informed me that my account is in arrears by R100... This is absolutely pathetic service and I want my account sorted out.