4 achievements not unlocking after profile corruption

I play on Xbox 360. Gamertag: Zepho39

I completed many achievements in Mass Effect 2 while my profile was corrupted. I deleted my profile, cleared the cache, restarted the system, and re-downloaded the profile. Afterwards, I was able to resume normal progress and unlock achievements. However, 4 achievements will not unlock, presumably because the progress bar had already been filled and now it can't "fire off" a completed achievement.

I have ensured I have completed the mission as instructed. I contacted Microsoft support twice and they assured me that they do not have access to reset or unlock achievements and suggested I contact EA support. I contacted EA support twice and they assured me that only the developers (Bioware) have access on their end to fix this type of issue.

I have tried using a new hard drive, I have tried using an Xbox one, neither worked, so I know it's a server side issue. In my most recent chat with EA support, they also revealed that certain Mass Effect 2 achievements are unlocked at the Xbox level and some are unlocked at the Cerberus Network (EA/Bioware) level. Not sure if this is helpful, but it seems related.

I have been bounced around for the better part of 2 months on this issue, and this is my last resort. I will try anything and everything to help fix this issue.

Screenshot attached shows which achievements need fixing.

Thanks to all in advance.