CVS Pharmacy

Had prescription filled here after surgery, employee told me it would take 20 min. To fill prescription, so I left and came back half hour later to be told it would be another 20 min. I told them that's what they said 20 min. Ago, so they said ok we'll get it ready now please stand off to the side, which I did, 40 min. Later my prescription was done. How do you make someone stand for 40 min. After surgery, clearly knowing that they were. Needless to say I will never return.