Misleading specials

I went to your kenilworth branch, as always staff was super helpful and customer service is on point. My issue is the misleading specials I took the R999 deal for my daughter, I knew I would have to pay slightly higher as her one lense needs to be thicker , what I didn't know was all the other charges added. My bill went from 1200 to 3000 due to her lense needing to be thinned out. I ofcourse cannot afford 3000 and was really taken a back by this now my teenager daughter will need to walk around with glasses that make her one eye huger them the other....really sad