I can't activate DLC.

[AnTul]

Hello.
I bought a game in retail, activated and installed in Steam. I also bought a few DLC. When trying to activate, a message comes out that they need a game. Sellers assure that the keys are correct. I believe them because the shops are good, I have been using it for a long time. Tell me, please, what could be the problem?
Good luck to you.

[thewood1]

So you bought it from Steam or Matrix?

[AnTul]

No, I bought in stores in which I have already been buying for many years, there were never any problems.

[thewood1]

So why would you come here for help? Is Matrix affiliated with this "store"?

[Raptorx7_slith]

So why would you come here for help? Is Matrix affiliated with this "store"?

You're not helping, I'm getting tired of your attitude. Consider this a warning

Which store did you buy it from? Are they giving you Steam keys explicitly or maybe the ones you recently bought were for the standalone version by accident?

[thewood1]

OK

[AnTul]

So why would you come here for help? Is Matrix affiliated with this "store"?

- Because Steam sent in support of the developer. I don’t know if Matrix is ​​connected with those shops where I bought - I’ve been buying from discount for several years, there were no problems. Now they told me how to create an application for Steam with the topic "Damaged gift card or code (voucher) of the Steam wallet", I hope that they will answer. He turned to the developers, hoping that such a situation was already. The game itself was registered and installed in Steam normally and one DLC too. But here are the other two, for some reason they do not see the established game. Steam recognizes the codes, does not report that these are false, but for some reason these codes are not installed on the game.

[AnTul]

Which store did you buy it from? Are they giving you Steam keys explicitly or maybe the ones you recently bought were for the standalone version by accident?

- The keys were just for Steam. The store support service checked them and stated that they are definitely workers and exactly for Steam. They told me how to make an appeal to the Steam support service, gave a link to the form. I tried from the profile of the game to create an appeal, but it was impossible to do this there, it is written to make problems to the developer.

[Raptorx7_slith]

Which store did you buy it from? Are they giving you Steam keys explicitly or maybe the ones you recently bought were for the standalone version by accident?

- The keys were just for Steam. The store support service checked them and stated that they are definitely workers and exactly for Steam. They told me how to make an appeal to the Steam support service, gave a link to the form. I tried from the profile of the game to create an appeal, but it was impossible to do this there, it is written to make problems to the developer.

Ok, if Steam isn't able to help there really isn't anything we can do from our side after that. We don't have any control over 3rd party websites who sell keys