Arrangements made never actioned

Last year before I went on maternity leave I called African bank up and enquired if I could activate my insurance on the account, I was advised to get an affidavit and the uif forms to be sent through to them, which I did, I haven't heard from them since and thought everything was in order when I started working again I immediately made a payment to my account a week ago I went into my African bank account signed in via their website and did an enquiry and no one contacted me back since, up until tonight when I had some one knocking at my door saying they have app**** a judgement to my name. I am infuriated simply because I did as they advised and started paying them as promised which is double my instalment and still they go against their word. I would like my name cleared of any judgements and for them to clear it at once.