I have no clue if you deserved the warning or not, but the unfair thing is that neither do you.
Giving you warnings without disclosing the reason is not only dumb, but useless.
"Hey, I'm warning you! You did something bad so never do it again!" "But what did I do?" "I'm not telling you" "Ok but I need to know what I did not to do it again, no?" "na, you don't, just stop existing, it'll be fine"

It's even weirder cause someone I know, when getting warnings, was actually told the reason. But I guess it's like Imora said, EU laws vs NA laws.