A partner is threatening to blacklist another partner. What to do?

Dear sir,

I established a civil company in Dubai with a partner. My share is 25%, my partner share is 70%, and 5 % is for a local agent

My partner is blackmailing me that he can blacklist or ban me. We have no bank account. We just have a partnership agreement in a notary public.

My visa is a manager's visa. So I just want to know how can I solve that problem?

Thanks!