My chat hasn't been working for the past two months

Hi ! I have an issue where my chat doesn't work at all, i can type but it doesn't show and i can't see other people messages.. H shows me an empty box and all chats are enabled in the options. It is pretty annoying since i have been dying to be able to thank my teamates and speak with my team. Anyone got any ideas. I'm starting to think i'm ghost banned from chat for some obscure reason.