False Information given

my son went for his grommets on Monday afternoon and we were given our authorisation number which was ***1 and we were told by Kelly that this covered the operation as well as 7 days take home medicine. When we went to dischem to get the medicine we were told we are not allowed to get the medicine from Dischem and need to get it from the hospital. We called Momentum and ended up speaking to someone who clearly wasn't interested in helping us, she screamed at my husband telling him that he has to get the medicine from the hospital. The more we told her that there is NO pharmacy at the hospital, the more she shouted and then put the phone down in our ear.This is absolutely disgusting. This is not the first time we have had to pay for medicine because momentum does not keep their word. My husband had a vasectomy about 2 months ago and again, we had to pay cash for the medicine. The operations were done at Netcare Constantia day clinic and they DO NOT have a pharmacy. Can someone explain to me why we are given authorisation to get 7 days worth of meds but only from the hospital?Kelly never mentioned that once. otherwise I would have told her. Someone needs to get back to me