Hi Ayyu Gumok! To link the rental company's RFID to your Touch 'n Go, you will need to seek assistance from the rental company. This process requires the vehicle owner's details. We suggest contacting the rental company directly for further guidance. For more details, check out TNG's FAQ: https://support.tngdigital.com.my/hc/en-my/sections/360008714994-Activating-TNG-RFID-Tag