Pearle Vision

I purchased my contacts from Pearl Vision & they told me that if I needed to exchange or returned them for any reason that they will gladly take them as long as they were not open or expired! So my right eye prescription changed & I asked them to exchanged 3 unopened and unexpired boxes, they refused & gave me nonsense excuses! I called the contact lenses company & they told me that they do not know why they would not take them back! so I asked if I can mail them back directly, but they said that I have to take them to the place where I purchased them & that then the place will have to mail them back to them. Pretty much they do not deal with the consumer. I would like someone from the Pearl Vision to step up the plate & do the right thing!