I thought buying account isnt prohobited , all i want is earn bitcoin here like what the seller told to me, and besides i did not make any transactions since i bought this account.
You made a few mistakes.
#1 - Buying an account and one that has quite the high rank.
#2 - Admitting you bought the account in the open, and simply to
"earn bitcoin here like what the seller told [you]".
#3 - Starting a thread and complaining about your neg rating you got for buying said account. This mistake alone is enough to earn you at least one extra neg rating from ThePharmacist.