Not getting credits for my achievements

If you're not already signed up, you would need to sign up for the Xbox Rewards program -
http://rewards.xbox.com You can view all offers for earning credits on the Missions page of the rewards site.

If you are signed up, you can earn credits for achievements if they are part of a specific offer on the site at the time. Like the current "You Complete Me" offer. In order to receive credits, you have to first purchase a specific type of game(s) to complete
the first part of the offer and then you can earn credits for completing a set number of achievements in the game you purchased.

You can also earn gems to redeem for other prizes. You can earn 2 gems for every 1,000 gamerscore you earn and a number of gems for reaching different achievement levels. Gems just started on October 1, so you would not have been awarded for anything prior
to that date.

They're not showing properly on my XBox.com profile either.

Since it's easier to look at my XBox.com profile and see which of the achievements I've earned from the affected games that I'm getting proper credit for, I've taken a look a couple of times and funny enough, among the ones I get proper credit for with DoA4
is the 10 hours played achievement, and among the ones I'm not getting proper credit for is the 5-hours played achievement. Obviously I can't have the former without the latter.

On one of the other affected games, I've earned two new achievements, and it's still not giving proper credit for all the achievements earned. On DoA4, I think I've earned just about all the achievements I'm likely to earn already.

Are there any specific offers you're looking for credits from? Achievements will only earn credits it they are part of a specific offer (like the current Dr. Rewards offer). Usually you have to purchase a game and then you unlock to option to earn credits
based on earning a number of achievements in that game.

Otherwise, there are no offers to receive credits just for earning achievements.

But I've gotten credits for achievements for this long, why did it just change all of a sudden? Do you just not get money anymore for getting achievements, because I have been getting them all this time.

Same problem here. Had to get like 5 achievements in mx vs atv before i credit. Played operencia. I have like seven achievements and im not getting credit.

You get more credits for achievements and to get more you have better luck doing it in a group

As it's group achievements