Aliexpress may be a big name in e commerce but doesn’t guaranty user effectve customer support. Aliexpress ships its products from its Hong Kong or China warehouse and there is no tracking info available for air china items. Even the seller would not be able to give any clear answers on delivery or the product itself.
If you do get your item after 1-2 months you will be surprised to see the quality of the product and the specs listed on the same listed do not match with the product delivered. Though the customer support would be able to create a dispute for you there is no assurance from their side on buyer protection