Processing. Official information from Yinlong Law Firm shows that the firm can help negotiate online loans and credit cards, and both online loans and credit cards can be repaid in one to three years. Henan Yinlong Law Firm is located in the Provincial Hui Center of Zhengzhou City. It is a lawyer in Zhengzhou and specializes in cases such as creditor's rights, debts, traffic accidents, criminal defense, contract disputes, intellectual property rights and other cases.