Hello,
On TruckersMP, here is how it works regarding permanent bans:
Temporary bans (1 day, 3 days, 1 week, etc.) are given for standard offenses (such as collisions, reckless driving, etc.).
If you accumulate several bans (5 bans within a certain period), you risk receiving a permanent ban.
However, they do not issue a permanent ban directly just because of lag or an isolated collision. It’s the accumulation that matters.