Hii . If want to join a signature campaign . you should know what are the policy of the signature camps. And I think it is hard to join a campaign . because the manager of camp is need your good and high quality post before you join the signature campaign . and sometimes it takes weeks or months before you accept of the manager . just wait .
Yes, indeed some of the campaign that has the famous manager too difficult to join because the campaign has several requirements. But I understand, if you are not accepted by the campaign will be immediately notified and did not have to wait for months.