Songs just not upload

I subscribed to itunes match almost 2 months and for almost 3 weeks i'm not being able to upload about 200 of my songs to the cloud (from a 15.032 total).

They fit the requirements but they just don't go. I have a 15Mb internet conection, and my the speed should not be a problem. I already tried to sign out, etc, but it didn't work also.

What should i do? I know that it's just 1% of the songs, but some of the albuns that i most enjoy are in those 1%. It's been 10 days that none of those songs uploud to the cloud!