I have a less than 2 year old home with all PGT Im...

I have a less than 2 year old home with all PGT Impact glass. Their is dirt between the glass and internal suction cup marks on all the sliders [9 sections] I have had several dates that this was going to be corrected since November 2015 no still no remedy. I have countless emails to the corp. rep and local reps and cannot get a response. Maybe someone at higher level will read this and contact me soon ?