Can't log in

Since sunday i can't log in. Just got DC, then "unable to connect" and sometimes "Banned".
Im playing not much. 21 lvl warlock Zitze. Im not using any cheating soft, not sharing account.
When im trying to reset my password, site tell me this:
"This account has been used recently. You can't reset the password now.Remember that you are responsible for your account security, and as stated in our Terms of Use, we do not reset passwords for hacked accounts."
Help me please.
Im playing not much. 21 lvl warlock Zitze. Im not using any cheating soft, not sharing account.
When im trying to reset my password, site tell me this:
"This account has been used recently. You can't reset the password now.Remember that you are responsible for your account security, and as stated in our Terms of Use, we do not reset passwords for hacked accounts."
Help me please.
