Pharmacists without medication knowledge.

I went to the pharmacy with a prescription, i had to collect the medication in the pharmacy before I can go to their clinic. An old white gentlemen (Pharmacist) assisted me with the medication.

when i arrived in the clinic the nurse immediately told me that the medication Im holding is incorrect and he opened the internet to check what the medication I had with me was for.

He took the medication back to the pharmacist and indicated that the medication he gave me was incorrect and asked for the correct medication. The pharmacist never apologized for incorrect medication but rather aggressive and not acknowledge that he was wrong. He just say " at least this one is cheaper than the first one".

Which I find so irresponsible of him to have given me wrong medication. What if the nurse didn't notice that the medication is incorrect.