Unhappy customer

We have had a ********** issue since last year July even today we are haunted with the same thing when they credited the account in January they didn’t credit the full amount. Now today we are faced with people calling us everyday and when we ask these consultants to log calls for accounts department to clear funds because the statements we are receiving say we owe nothing but they call us saying we owe R3680 and we get messages where they close these emails of *****. We also experience our lines being cut, I am pregnant currently and I have no idea what will happen when I have to call emergency.

Please anyone help where do we go what do we do now