In most cases, car rental companies in Wadi Rum require a credit card for renting a car. This is to ensure that they have a method of payment and can hold a deposit for any damages or additional charges. It's recommended to have a credit card when renting a car in Wadi Rum. However, some rental companies may accept debit cards or cash deposits, but this will depend on the specific company and their policies.

When renting a car in Wadi Rum, you typically need the following documents:
- A valid driver's license from your home country
- A valid passport or ID card
- A credit card in the main driver's name for the security deposit
- Some rental companies may also require an International Driving Permit (IDP), so it's best to check with the specific company beforehand.

Some car rental companies in Wadi Rum have a minimum age requirement of 21, while others may require a minimum age of 25. It's best to check with the specific rental company for their age requirements. If you are under the minimum age, you may still be able to rent a car, but there may be additional fees or restrictions.

Most car rental companies in Wadi Rum provide basic insurance coverage as part of the rental package. This usually includes third-party liability coverage. However, it's important to note that this coverage may have certain limitations and deductibles. It's recommended to check the details of the insurance coverage with the rental company and consider additional insurance options for more comprehensive coverage.

The ability to drive a rental car from Wadi Rum to neighboring countries will depend on the rental company's policy. Some rental companies may allow you to cross borders with the car, while others may have restrictions or additional fees. It's important to check with the specific rental company for their cross-border policies and any necessary documentation or permits that may be required.

In case of an accident or breakdown with a rental car in Wadi Rum, it's important to inform the rental company immediately. They will provide instructions on what to do next, which may include contacting the local authorities and arranging for a replacement vehicle or repair services, if necessary. It's essential to follow the rental company's guidelines and procedures to ensure your safety and minimize any potential liability.