How does the contributor system work?

Please read the F.A.Q.

game you given away and got confirmed costs 9.99$, so you're 1 cent short from entering 10$ CV giveaway.

Also as you only give bundle games, keep in mind they will give you only 30$ CV maximum.

FAQ

It takes a while to update contributor values, please wait at least 20 minutes.

Since no-one's checked your profile yet, the geniuses, CV is only counted when a giveaway is marked as recieved.

Looks fine to me. Try again, there may have been a slight delay in updating your CV.

"I created and completed a giveaway and the winner has marked it as recieved, but my contributor value isn't rising. Is there something wrong?
No, absolutely not. There're three reasons this might be happening. The first is simply solved by waiting. There is a delay of up to twenty minutes before your value changes and it will update shortly. The second is that single entry giveaways do not count towards your contribution value. Because they only got one entry, they are not considered as a raffle, but rather a direct gift. The other is due to having too many bundle games given away. Your contributor value will be locked until you submit further giveaways that are not from bundles and will continue to rise gradually until the full value has been reached. For more information on how values are calculated when bundle games are involved, please check this thread."

^_^

There is a delay of up to twenty minutes before your value changes and it will update shortly

it comes from the FAQ and I assume that's why you could not enter below-$10 giveaways yet. be patient :)