Incompetence and disrespectful staff

Sent claim documents to this company on the 18th and a lady by the name of Lesedi Langa emails back stating that they haven't received all documents needed even though I had sent them. I then sent again the documents she claimed are missing on the 20th of August for a claim that should be taking 7 working days but to my surprise on the 25th im still told to email the very same documents that I've submitted twice already. I don't understand whether do they check their emails or what is happening. I then called their call center and a very disrespectful lady by the name of Refilwe who is at their Morningside branch was very dismissive, does not want to listen or do a thorough check on the dates and times im submitting, all she demanded was that I do as she says otherwise she isnt willing to help or listen further. Quite frustrating having to deal with Clientele and its workers.