Hi @wolfwenjie91 ,
Welcome to the community!
Thanks for raising this to us, I would love to help see the status of the service installation. To better understand the situation, please shoot me a private message with your account details (Username/Customer ID) together with the address on file.
When arranged your work, TPG will inform you they changed the installation date when it comes to installation eve. Yea, it is a installation date or tricky date?