can't send messages in support channel

Why can't i send messages in the support channel?
My account got banned recently for teaming up with my brother in squads i told him we'll get banned but he didn't listen and after 2 mins i got banned. As you can see from my account, I have never done anything like this before. This is my appeal to unban my account and this will not happen again. I tried customer service in-game but no response yet.

UID: 51931305891
NICKNAME: 7T×Nasar
SERVER: Middle east
DEVICE: Oneplus 9
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