You should try original method first. Only needed if the original method fails.
Original method :
https://steemit.com/tutorial/@sefalist/free-items-of-aliexpress-and-all-chinese-websites
Step 1: Tell them that it doesn't matter what they are saying. Tell them the law is the law, but be sympathetic and explain that you can understand why they haven't heard of this law yet. Inform them that the law was just passed a month ago. Perhaps something like this would be best: "I'm sorry Mr.____, but the law is the law, and you are breaking it. I do not make the laws. The government does for a reason, and you are not supposed to question that. However, I do understand why you may be surprised to hear about this new law. It was passed just last month, and as such, not many people know about it. Although you should know about it, considering you are a professional businessman. It is entirely your responsibility to be informed of the law
Step 2: If they continue to argue even after explaining all that, tell them you have no choice but to file a complaint with the Chinese Union of Fair Trade. Ask them for their email and their full name, although the supplier's name should already be displayed in the live chat window. The whole point of this is to get the email, but at the same time, sound like it's for the ort your filing.
Step 3: Once you receive the email address of the supplier, tell him you are filing your ort with the CUOFT. Wait 10 minutes or so and tell him the ort has been filed, and that he will receive an email within 2-3 days by the CUOFT. Now actually wait 2 days, then continue onto the next step.
Step 4: So it seems these sellers have done everything they can to prevent you from that free sample, so now you're going to drop the bomb. An email from the supposed Chinese Trade Fair Trade Union. Here's what we're going to do. After waiting about 2 days, go to http://emkei.cz.
Step 5: Fill in the fields as follows: From Name: A very Chinese name. Use this website to generate one. From E-mail: noly@chinesetradeunion.gov To: (supplier's email) Subject: Fraudulent activity ort #XXXX-XXXX-XXXX-XXXX-XXXX Ex. Fraudulent activity ort #1309-2364-13134-7239-7290 Text: "A ort has been filed by (your name on the Aliexpress account) indicating you have been engaged in fraudulent activity violating the laws of the Chinese Fair Trade Union. The offences of which you may have committed are severely punishable by law and will not be tolerated. Specifically, you have violated chapter 7, section 3.4 of the Chinese Fair Trade Law book which indicates the following: "For all purchases equal to, or greater than 1500 units, suppliers are required by law to provide buyers with a sample, free of all charges including shipping fees. The buyer is not required to place an order before receiving the sample. Violation of this law will result in a maximum fine of $5,000, and/or 6 months in prison." Our orts indicate that you have directly violated this law by refusing a customer a free sample, when he/she had full intentions of purchasing an order of 1500 units or more. We have investigated the matter and have found you guilty of the charge "Fraudulent Activity." As a one-time courtesy, you will have the option to resolve this matter with the buyer individually without intervention from the Chinese Union of Fair Trade. You are to immediately dispatch the sample, requested by the customer, free of all charges, including shipping fees. The customer is in no way required to send you a payment of any kind in advance, or place any orders. You may not refuse to sell to the customer at this point. Should you fail to resolve this matter; the Chinese Union of Fair Trade will intervene and punish you by law. This punishment may include a $5,000 fine and/or 6 months in prison. Do not ly to this email. It is being operated by an automatic-ly system, and as such, is not being monitored. Sincerely, The Chinese Union of Fair Trade