So i don’t know if my cousin did anything but i come online & see that my account is temporary banned & all i did was play regicide to get the challenge completed like really 343 !? … if there’s nothing i can do to get this ban lifted how long do I have to wait to start gaining XP again !?
I’m sure your little brother did something… it had to be the little brother, always the little brother, I’d check with him if I were you.
“Got banned for no REASON”
liar.
You were banned for having such a ridiculous name.
There is always a reason. 
These are just a few games in which there are guests with 0 kills. In other words you were banned for full party boosting, it’s always the cousin or the little brother or the nephew. All the same excuses for when the credit resets started happening in Reach when people were challenge resetting.