Unprofessional conduct

Medication expired and I returned it to the clinic expecting to be given a replacement. I was instead told it will take a day or two. A week after that day or two I’m now told it takes two weeks as the medication has been sent to their laboratory to be checked. I informed the gentleman that I’m not interested in the medication that had been sent to the lab as date of expiry is clearly indicated on the medicine. It seems men’s clinic international wants to convince me that there is nothing wrong with the medication. It is a situation of telling a patient that we will give you your medication after two weeks, in the meantime you can go on suffering. This is so unprofessional, when you pay for a service you expect to receive that service for your hard earned money. Very disappointed customer. Maybe I should now involve my lawyer on this matter.