Wholeseller demands a credit card information?

I am starting a small business and a wholeseller, who I am thinking to buy from, demands a full credit card information including CID number. Is it fi

I am starting a small business and a wholeseller, who I am thinking to buy from, demands a full credit card information including CID number. Is it fine? I smell the set up, but probably that's because I am new to the system

or:I am starting a small business and a wholeseller, who I am thinking to buy from, demands a full credit card information including CID number. Is it fine? I smell the set up, but probably that's because I am new to the system

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