1 star is too high of a rating

I have had the worst experience, I submitted all the documents and they kept mailing me to submit the documents for a claim. I sent the documents again and they keep mailing me for the documents. I email for a managers email address to escalate the matter with no response. I called them again and they lady said they received the document she doesn’t know why it’s requesting me to send them again and after that she requested more documents. After requesting to speak with a manager she told me that there is no one who could assist they will get back to me. This is the worst customer experience