Claims department and Call centre are useless

I submitted a claim for Antenatal Classes in January, based on the way the invoice was drawn up, i wasn't paid in full for my claim. the invoice was redone and resubmitted in February- i still haven't been paid for my claim. i have called the call centre over 6 times. been given all different instructions from different agents. still no funds in my account. this is totally unacceptable, pathetic service. one agent even provided an incorrect reference number, didn't log my call on the system and cannot be traced. Medical aid is a *******, premiums are so high and quality of service totally sucks!