Welcome to the community, @phuongdoan13 !
I am sad to learn about the lost SIM, I would love to help arrange one of our Mobile Specialists to contact you to discuss details of SIM replacement. Please send me a Private Message with your account details (Username/Customer ID) together with the address on file.
I am currently on a mobile PLAN with TPG but I lost my SIM. Therefore, I would like to have a live chat support to support a replacement.