I Can't Add Friends On Facebook And My Facebook Request Block 4 Days More.

I Can't Add Friends On Facebook And My Facebook Request Block 4 Days More.
i can't add friends on facebook and my facebook request block 4 days more I will you know that if I give friend request someone then how many days they reply back and they do not give reply and also they give reply negative then my facebook is block, it's possible, give me ans.