Very Poor Customer Service Receive

I got a prescription filled at Clicks, Silver Oaks. At the check-out, both my cards were declined. I stated that this is impossible. The cashier proceeded to simply stare at me, she offered no explanation or assistance. I then asked if I could please have the original script back so that I could get it filled at another pharmacy, she rudely told me to walk to the back and to do it myself. Normally I would have overlooked her bad attitude but was feeling already really ill and I did not appreciate how she approached the situation. I got the script back myself and then returned to the counter to ask her to please write down her name for me, she initially ignored me and then eventually only gave me one of her names, refusing to provide me with her full name. At this stage another gentlemen behind the counter asked her something in his own language and she stated they were offline, at no point did she inform me of this. Dealing with the public is always challenging but customers who feel ill perhaps more so, but it is still a job and should be conducted professionally, in a civil manner and above all, clients should never simply be ignored.