Returns policy ar Atlantis - Consumer Complaint for Medirite Pharmacy

Why does your returns policy say one can return items within 6 months provided it has not expired in that time. My husband went to purchase benelin for flu at your Atlantis branch today and was given the syrup. I then asked him to return it for the tablets, according to that outlet one is not allowed to bring things back or exchange it for something else. This is unacceptable as they should of told him in the first place that they did not have the tablet form and offered him something else. I would understand if he never went back the same day, however he returned it within 10 minutes of the original purchase.