Unfair and ****** Treatment of a consumer

My Husband Spoke to a Lady called Dalene at Tatham Wilkens Lawyers. She was very rude and even sounded ******! My husband paid up one of his accounts last week and called to ask for a paid up letter. She claimed that my husband hadn't been paying their client for 2 years and further said to him "What is it with YOU PEOPLE, we are dealing with 1000 matters". My husband asked for a reference and she said she doesn't know whether the calls are recorded or not. She said my husband can go ahead to complain on the consumer ombudsman if he is unsatisfied with not getting a paid up letter within two days. My husband sent a proof of payment of R15k on Friday last week (18/09/2020). Now we are not sure if we are being ****med with this account; since our medical aid didn't pay a lot of accounts. My husband informed this lady that this judgement is threatening his job and she says that, "that doesn't concern them". She sounded very ****** AND CONDESCENDING and it within my husbands right to request a paid up letter when he has settled the account. She concluded by saying "The don't work like Joburg companies" this is unacceptable, and very unprofessional. After paying up an account a consumer has ALL THE RIGHT TO RECEIVE A PAID UP LETTER especially after sending s PROOF OF PAYMENT. Unless this is a ****!!!! Reference of the debt: 08SC7709/8