Is Shein running away with refund or is it just miscommunication

I have bought some items on the 26 May 2024 and today is the 15 June 2024. The lostic company has informed me of the loss of my package on the 7 June which in turn i tried contacting Shein to inform them of such but they said the logistics company could not get hold of me. I sent them an email with attachment of the email from logistics. I have not heard from them since and its been 6 days. All i need is an update just to know that something is being done regarding this order GSHNGD12M00NR7U. The Customs did contact me and i paid my taxes so I do not understand why Shein is saying that my contact information is missing or incorrect when it comes to delivery. I have been using Shein since 2022 and my info is still the same. I hope this is not the way to try to ten away from paying my refund. Another thing you need to update your system regarding queiries about orders because there is no option for a lost order in the list provided there.