I did not get any Mass Effect 3 DLC?

@EmoDeShort 

Please clear your temp files:

• Press the Windows key and "R" at the same time
• Into the new window, type or copy & paste:  "%temp%"   (Without the quotes.) > hit "ENTER"
• Now your Windows Explorer should have brought you to the "C:\Users\>your user name<\AppData\Local\Temp" folder. > Delete all files and folders in it.
  (If some files or folders can't be deleted, reboot and try again.)

Then:

• Go here and download "Revo Uninstaller". (The freeware version, Portable version works too.)
• Run "Revo Uninstaller" > Uninstall ME3.
• At the end of the main uninstall, Revo will ask you which cleaning method you want to use. > Select "Moderate" > Browse
• If "Remaining registration content found" is displayed > Select All > Delete > Next
• When "Remaining Data and Folders" is displayed > Select All > Delete
• Run "Revo Uninstaller" > Uninstall EA Desktop.
• At the end of the main uninstall, Revo will ask you which cleaning method you want to use. > Select "Moderate" > Browse.
• If "Remaining registration content found" is displayed > Select All > Delete > Next
• When "Remaining Data and Folders" is displayed > Select All (Make sure the "Origin Games" folder is not in the list) > Delete.
• Restart the PC > Reinstall the newest version of EA app from here.
• Reinstall ME3. > Test.

Thank you for answering this, unfortunatly it did not work. The only DLC that still is on my account is extended cut. 

@EmoDeShort 

• Make sure EA app and Steam are closed.
• Press the Windows key and "R" at the same time.
• Type or copy and paste "%ProgramData%\Electronic Arts\EA Services" (without the quotes) into the new Window > ENTER
• Move the "License" folder to your desktop.

• Repair the game.

  (Origin: Game Library > Right-click the game cover > Repair)
  

  (EA app: My Collection > Click on the three dots on the game cover > Repair)
  (Steam: Game Library > Right-click the game > Properties > Local Files > Verify integrity of game files.)

• Test.

@holger1405Thanks for the attention to this issue, I am also experiencing it. Unfortunately neither of the fixes you suggested solved the issue. 

@EmoDeShortI hope you find a viable solution, I'm sure like me you're stunned at the fact that EA have, for all intents and purposes, stopped selling ME3 with most of the DLC. Even the free Multiplayer-based DLC. One difference between your case and mine is that I have three apparently arbitrary DLCs that download and work with the copy I bought -- From Ashes, the Extended Cut and, for no apparent reason, a random content pack that includes the useless varren mech. I'll keep trying and if I find a solution unintuitive enough to thwart EA's incompetence I'll share it with you.

Good luck dude. I talked to EA support and they said they can't do anything, since they can't add the DLCs to our account on their end, we can only wait for EA's goodwill to make the DLCs avaliable to claim at their store, but i would not get any hopes up.

My situation is the same as yours. My situation is mass effect 2, and the customer can't do anything😭😭😭

Try downloading the DLCs here 

https://help.ea.com/ca/help/faq/dlc-for-classic-games/#masseffect

Hope it helps

I tried and it shows no authorization

@EmoDeShort 

This is a response from customer service to me. Maybe we can only wait for EA to resume purchasing in the store：

The game code is activated on your account successfully however, the game code is only for base game. There is a separate game code which have DLC's as well.
I would request you to reach back to the CD key retailer & get a refund.
Annie
17:51
In this case, I would request you to get a refund from CD key & purchase the game & it's DLC's from EA app.
17:53
We cannot grant you DLC's for free from our end.
Annie

@EmoDeShort 

@759cd00333ec4d06 

May I ask if your quality effect 3 has been activated through CDKEY? Is it activated on the origin or EA application?
Or purchase from the origin or EA app store?
May I ask if you can answer?