Bad Service with an account

A item code is incorrect on a claim that was send for processing at my medical aid. I send a mail on the 29/7/22 to ask for assistant to get the item code changed. No response. Again send mail on the 3/8/222 NO RESPONSE. Mail again on the 16/8/22. Got response on the 19/8/22 from Ravell Jordaan and Lindi Lotter - Saying they try to get hold of Dr with no response, I reply with Dr Cellphone nr. No response from Ampath Accounts. Mail again on the 24/8/22 with dr's room number. No response. Follow up with Ravel Jordaan and Lind Lotter again on 5/9/22 NO RESPONSE. Called Ampath talked to a lady phone cut due to my airtime being up. You just do not get any response from Ampath BUT!!!!!!!!! When they want to hand you over to the attorneys then then they can quickly call. Utterly bad service