Disrespect and poor service

Both me and my husband have scripts at Clicks. I received 2 SMSs from Cinnamon Clicks on Sat 10 July our scripts are ready. Arriving there, there was no trace if our meds being processed. The girl (Shannon) found a package containing meds that I asked to be cancelled 3 months ago, and that had been booked out. I struggled to make her understand that I do not wish to continue using those meds, and that I had requested twice before, that it be removed from my script. She struggled for over an hour just with my husband's script, as his insulin were both out of stock. At long last she gave me the computer slip to sign. When I asked her if this was only for the meds I actually received, or were the ones on order included on the slip? Because I'd have to send my husband to pick up his meds when the insulin comes, and he shouldn't sign for it again. I was worried that the insulin might be charged twice. She flippantly asked, why can't your husband sign, does he have a sore hand? I was shocked at the blatant disrespect. She had admitted that she was new, and today was only her second day on the job. Of course I should double check and make sure that there were no misunderstandings or mistakes. Isn't that my right? Anyways, after 90 minutes I left with half of our meds, feet aching and furious. This is unacceptable! Why do you even offer an SMS service if it obviously is a waste of time? And please could you train your employees properly, including being respectful towards customers.