There's no such thing as accidents (rules are clear enough, especially on the board that you were active):
Anyone posting info from their bounty application (usernames, addresses, etc.) or anything alongside the lines of "joined X", "looking forward to getting X", "thanks for the opportunity", "filled out form", "signed up for X", "applied", "following / liked / retweeted X" when such data is not required or the requirement is against the forum's rules risk having their account banned. These are extremely low quality posts generate massive amounts of spam, drowning out any legitimate discussion these threads may posses.
I checked some of your posts (I'm sure there's more):
Repetitive posts:
KYC FOR BOUNTY ?
KYC FOR BOUNTY ?
KYC FOR BOUNTY ?
KYC FOR BOUNTY ?
what should i do ?
Is there any chance I'll be unlocked ?
Nothing can be done (there's no specific time on the message, meaning it's a permanent ban).
It only occurs when someone has reported your personal message as a spam.
That's incorrect.