NHTSA Complaint #11443024 — 2012 VOLVO S60

When I purchased the 2012 volvo S60 back in June we started to drive and it said low beam out and later found out that it was the drivers side low beam took it back and they tried a new headlight but didn't work but we found the problem it was the ballast to the hid bulb was bad changed it bam fixed 2 days later the light came back on and said low beam out but this time it was the passenger side took it back and they checked and said that it was the samething the low beam hid ballast so got that they changed it and bam fixed well left there and less than a week later the light comes back in saying low beam out and only its the same side again this time the passenger side, so my question and concern is I can't ve the only one having this issue with my headlights causing me to drive with high beams on which isn't safe so please get back to me with an answer I believe there is something faulty with these S60 r-design hid low beam headlights please help