I revoked my GCKEY last week and tried many times but unable to link my application to my new GCKEY. I entered every detail of my application correctly but unable to do anything. Please someone help me as some of my labs are done on college campus only and i can not travel because i do not have all the documents required to travel. I have got my stamped visa but do not have my correspondence letter which is important to travel. I beg you if someone knows anything please help.