China Eastern is handling the luggage forwarding for KLM. Three bags went missing in Shanghai. 8 days later,

• they failed to provide a valid phone number
  

• they could not tell me where exactly to pick up the luggage
  

• they have an address to deliver the luggage to
  

Q: Which experience do you have? Any advice? In Europe, where a taxi often costs them more than 5,000 Baht, they deliver luggage to the door.

Contact KLM. They should also give you compensation for you having to buy extra things like toiletries etc.