Sorry for the stupid question, but did I changed the key ? I mean i downloaded the battlelog key changer,then clicked apply and its says key changed ! So ive tried to connect in NRNS CItiy maps but it still says that im banned,the key in the settings of the launcher was the same? Should it stays the same ?

Hello,Ive installed the new battlelog launcher and when ive tried to log in nrns citiy maps its said ive been banned :/ I do not teamkill or hack,i think maybe is the new launcher or something else ? ive tried to change the cd key too :/