Bad and unacceptable client service

My wife went to Kloof hospital and was admitted for Covid complications. Several blood test was done by Ampath and claims was submitted to Bankmed and Bankmed paid amounts over to Ampath. Ampath phone me send me Sms to inform me that i own them and amount of R2125.03 and i must pay the amount immediately, which i did on the 6.8.2021. After i did some investigations why i had to pay this amount i come to realise that Bankmed pay this amount from the wrong benefit it should have been paid from PMB and not pathology. I took it up with Bankmed and they admit mistake and correct the matter, A lady from Bankmed phone me and told me they can't pay amount to me they had to pay it to Ampath. She said she is going to phone them to request as soon as they receive amount they must refund me, an accent at Ampath call centre refuse to speak to her due to Popi act which i understand. I phoned the call center and speak to them and an agent said no problem as soon as they received the credit they phone or i can phone 3 days after date money was credited to Ampath. I received confirmation from Bankmed that amount will be paid to them on 22.9.2021. I phoned Ampath call centre on Monday 27.9.2021 and an agent confirmed money has been received and i ask him to refund money to me and what and how do i send information required. He said to me no they going to refund it to medical scheme which i said that they refund it to me as i paid it to them and explained what Bankmed said to me. He gave me there refund department phone number which i phoned 11 times and hold on for total more 24 minutes and all what i hear is your call is important and we will put you through to next available agent and till today i did not speak to anybody because they are busy all the time. I phoned the call center again Monday afternoon and explain to him that i am really not happy with service i received and he said he will phone and send them mail that they must phone me which did not happen. I tried to phone refunds department twice without luck to speak to someone and I then again phoned Ampath call centre and agent confirm that mail was send to refunds department and she try to call refunds department while i was holding the line for 8 minutes and 15 seconds then i was -off. I was so angry at that time that i did not phone again on Tuesday. I phoned Ampath call centre again today and lady phoned refunds department twice after i explained what happen the previous days with out luck from her side to speak to someone at refunds department with her on the line for 21 minutes and 10 seconds. I ask her to speak to one of the managers and after almost 2 minutes come back to me and said manager is busy on the phone i must hold for about 2 minutes them she will talk to me i said to her no i spend already now more than an hour to them on my expense he/she must call me back they has all my information which she confirm my phone number and she will give it to her/him. Till now nobody phoned me. I had to pay immediately when i owed money to them and they can take days to pay me back money owed to me. There client service suck and is unacceptable.