Why Reddit Ban My accounts please give me any suggestions ?

When it happened to me I just used another email address and opened a brand new account instead of waiting for an answer that may never come.

You did something you might not even know about, then again they hate spam as well.

I suffered from the same issue. I think creating multiple accounts on the same system caused it.

They don't ban for no reason, you broke a major rule.
Please follow the rule.

If you post anything that violate reddit's rules and norms, then your account can get banned.

You would have broken Reddit's content policy. Your promotion counts as Spam. You have to be very careful about any posting on Reddit. First you need to increase engagement with likes share commenting then promote some things slowly.

Ok thanks for replying

Reddit may ban accounts for rule violations like spam, vote manipulation, or harassment. Review Reddit's content policy, avoid using multiple accounts, and appeal if you believe it’s a mistake.