I recently tried updating my clan tag from SOLO to PIAT but i unfortunately got an error message saying text is prohibited. all my friends have the PIAT clan tag except me and now i cant even enter the simple ABCD or 1234 for some reason. i've tried emailing the support team at COD.com but after 2months i have yet to receive a reply. im hoping that a solution has been found since then. I am aware that im not the only one with this problem, and i have been a decent player with no reason for me to get banned. can someone help ?