Worst Service ever

Last year August an optometrist i went to claimed for spectacles that i never took. I have made a numerous calls to Bankmed to reverse this payment as i needed to claim for spectacles now. The incorrect claim was reversed and my new invoice was received and they were busy processing payment. last Wednesday i called and was advised to check on Friday if its done as they are still busy processing the invoice. I called today and a very arrogant lady who don't have any respect whatsoever for her job she told me to restart the whole process again as there is nothing on file. How is that possible if everyone else could pick up this information why only her sees nothing. The call was cut off i called back twice again and the call went through to someone who just went quiet and said nothing