Unhelpful

So my husband paid the outstanding in February and they still keep on harassing us for the outstanding balance. This morning I received and call saying they could not get hold of my husband to advise that we still own money, when I asked her to advise what the balance is as this was paid in February as she they she cannot advise on this balance because it is company policy. I am his wife and married in community of property. Really now surely you can advise the outstanding balance. I told her if that is the case then I cannot help her and you will not get hold of my husband as he as paid you guys in full. Please advise if there is anything outstanding and if so what the amount is or alternatively where I can send proof of payment that was paid. This according to our knowledge is paid in full. FYI Payment was made to ITCBA collections. Please sort this out. REALLY ANNOYING because you are still harassing us