Bug - unable to chat , have spoken to a GM

i have a lvl 15 terran ladder commander,
i can chat in arcades but i cannot chat in group chats.
error message as stated, you must upgrade in order to chat.

GM kudaraphax has asked me to post in bugs. kindly advise.

Strange… Either in those groups you have to be a certain rank and you are just a private, or you haven’t joined them groups properly?