unhelpful *********** customer services

The customer services department are unhelpful when they cannot resolve a problem. I ask to speak to a supervisor and get told no one is available. Could they get one to call me , no I must keep holding till one comes in. How is this customer service. Their app says I am in arrears on my side but not on their side, they cannot seem to understand this. I AM NOT in arrears as they debited my account and yet I get the app on my mobi app saying I am in arrears and I get calls from the head office saying I am in arrears === go figure !!! And I cannot get the idiots in customer services to get a supervisor or manager to call me.