I had a similar experience today with Melbourne, FL store. I have been at the store twice this week-and called them twice, looking at frames, talking to them about their 2 pair glasses w/progressive lenses for $158.00, and asking about hidden charges (they state they have no hidden charges, lol) but when my husband and I went in today to actually PURCHASE, the price went up by $30 PER PAIR because i have a really large correction in one eye, and they charge $10 extra per diopter per eye over/under 3.00 on the sphere reading-meaning if your right eye sphere reading is -3.00 and your left eye sphere reading is + or -6.00 in another eye, you have to pay $30 dollars extra per pair for the lenses.
Now, I have read everything in their advertising, and nowhere does it state that people will be charged more for larger vision corrections. Just for upgrades, to thinner plastic, or to glass, or transistion lenses, stuff like that.
Well, they called me back several hours later offering to give me an extra $30.00 discount, so I would only be paying the extra fee on one pair of the 2 pairs of glasses I am buying. I will be calling the better business bureau, the department of commerce and the dept of professional regulation first thing monday morning.