Nightmare company

I have never been so harassed by a call center in my life . I took my time and airtime to call them and ask to set up a debit order , I spoke to someone named Ms Khumalo who said she will set up the debit on my husband's account . I gave her all my information and my husband's consent . She said the debit order will go off on the 25 of November , which it didn't . I called them back to find out what happened and they told me I was supposed to make a payment of R50 first before my debit order went off . I told them I was not informed about it and I asked to speak to a supervisor ( Mr Abrahams ) who was just as *********** and rude as Ms Khumalo . She actually put me on hold for about 30min until she hung up . They call me each day and will turn me into a fool if I ask to speak to a manager ( who is always out of office ) they shout and they keep on threatening me and I'm the one who asked them to debit from my husband's account. I don't know what to do any more with them . I just want this matter sorted out as soon as possible