Poor service

I have a repeat course prescription with them, so on Monday receive a call from them that I am dew for a follow up medication, should they prepack it for me or not? and my response was yes, since that will save me time, and the follow up question was is it going to be cash or medical aid and my answer was medical aid, and I was told that it will be ready for pick up the following day. Yesterday I got home, and I was lazy to go and pick it up, but I eventually decided to go, I went to the one in Douglasdale as I chose it and my medication was ready and waiting for me, when I went to the till, thinking that I am going to pay a co-payment, they asked for the full amount of which I told the cashier that it was supposed to be on medical aid, and she reffered me back to the pharmacy, and upon checking, they told me that I came a bit soon after my last medication, my question was why did they call to alert me that I was due, the waste of time and resources for me to go and pick it up, I am not impressed at all......