CASHCRATE ALREADY KNEW MY INFORMATION!!!!!!!?

ok i wanted to finally enter my information on cashcrate. but wen i was about to it already knew it and by that i mean wen i typed in the first letter to my info, it had a pop up box with it already in. after that i automatically deleted my acc. but right now i am scared will they track me down. will they found out my SSN? plz tell me. this is very serious. and i nvr put in my info before i EVEN deleted the history and it still knew everything. PLZ U KNOW HOW IMPORTANT THIS IS HELP ME? WILL MY LIFE BE RUINED!!!