There are some car rental insurance acronyms that might be confusing, so let us break them down.
TLW means Theft Loss Waiver and CDW means Collision Damage Waiver
By accepting these waivers, your liability is limited to the amount of the excess, which is payable by you in the event of accident or theft of the vehicle. This is known as the excess portion.
Star Car Rental offers the options of a Nil excess at a slightly higher daily rate.
If you decline to accept the waivers, you will find that most car rental companies will not conclude a contract.
Most car rental companies will also not allow you to use your credit card insurance cover, and this is common in several other countries. You cannot contract out of insurance cover without depositing the full replacement value of the vehicle you are hiring.