The bottom of the wing is no big deal, if you catch it, or replace the wing.
The jacking points are more sinister though... Have you looked under your side skirts? Or had a propper nose about under neath? Chances are you are fine. Mine wing let go at the bottom, so i replace it. But all of the rest of the sill, and under side skirts was fine

Commen to go on the wing, as the water/dirt etc.