Chronic Medication delivered 10 days later

I called and placed my Chronic medication (Diabetic) order the 07.09.2015, I did not receive it, so I called the 14.09.2015, I was told by a call centre agent that they were out of stock with one of the medications, but that I will have my medication the 16.09.2015. I then sent a complaint on the discovery site, and till today, no one has called me from Discovery Health. I did not get my chronic medication the 16th, so I called the 17.09.2015 after speaking to various call centre agents, and by now I was very upset, they would not transfer me to a team leader or manger (this was before 5) and when I called again at 16h55, I spoke to Kalay, and she said that it is 17h00, and that if she transfers me to her manager Ravan Singh, he would not answer but I will get the automated machine. she took my details so that Ravan can call me today 18.09.2015. No phone call from him or anybody from Discovery health. after 10 working days, I got my medication this morning. Discovery Health and Medexpress is not professional at all. No Feedback. they take your money, yet fail to deliver on their part. I am going to change my Medical Aid.