I placed an order on December 22nd and the seller gave me the following tracking RM988647159CN. I wrote him on January 22nd and he replied:I will always help you check the post office ,tracking your package,please do not worry,you will definitely get your things. I wrote him a second time on February 4th and he replied:Hello,due to the traditional Chinese New Year Holiday, all company employees will be on vacation.But do not worry ,the staff will help you with any problem after the 15-day Holiday has ended. Thank you for your understanding. I wrote him a third time on February 14th and he replied:I just checked the post office,Your goods in transit is safe ,you will soon receive.Please trust me, I am an honest seller,you will receive your package,please wait patiently.I wrote him this morning and he replied:Hello,since air transport is a bit slow,you know,I believe it will be in your National arrive soon,please be patient.

Why if I enter the tracking tells me it does not exist?