You should add a rule "Members with negative ratings cannot join" , or scammers like these, who aren't accepted in any sig campaign except yobit, will start showing up:
Hi zebpaysupport I am from India and I am a regular user of your beautiful service I will happy if you accept me for this campaign I will happy to have you at my signature and I am not a scammer I can give you my zebpay mobile number and user name by pm if you accept me thanks