Ryan c230

I just had a dent pulled out (paintless dent repair on my 2000 e55), the dent was on the driver side quarter panel on the wheel well right next to the edge. The tech said it would be more work but he could get it done. Well he got the dent out but there is this faint white-like sort of line where the dent was. The tech said it is what they call ghosting, when the paint discolors from bending the metal so hard back and forth. So here's my question:

Am I stuck with this or is thier anyway this discoloration can be corrected? Thanks in advance for any advice.....