Staying in Etosha Park, Namibia

I've recently contacted Etosha National Park, asking them to book 2 nights at their camping sites for our upcoming trip to Namibia. They've quickly got back with a quote, but in order to secure the booking I need to fill out a form, then fax or scan/email it to them. The scary thing is, form needs my credit card details, all of them, including number, CVV code, my signature, etc. This raises some questions:

Is that normal and safe thing to do? I've used official site and their contact form, so it does not look like an outright scam, but still giving my card details like so feels very uncomfortable.
If I don't proceed, is there any other way to stay overnight inside Etosha without violating any rules? Maybe these camps are not fully booked in early May, so we can just show up and hope to have a place?

Pictures about "Staying in Etosha Park, Namibia"

Staying in Etosha Park, Namibia - Elephant on River

Staying in Etosha Park, Namibia - Bare Trees in Desert

Staying in Etosha Park, Namibia - Hippo on Grass Field

Can you stay in Etosha National Park?

Etosha National Park offers a selection of Accommodation and Camps. The accommodation varies from bush chalets, family chalets, premier accommodation and campsites. There are six main camps inside the Etosha National Park.

How many days do you need in Etosha?

Three to four day is the ideal amount of time to see Etosha National Park. To cover some different areas which to increase game viewing opportunities and to mix the styles of Etosha accommodation, we recommend the following itinerary.

Is Etosha National Park worth it?

Places of Interest in Etosha National Park is not just a well-worth-seeing location of unique nature and landscape. The Etosha Park is the perfect visit for wildlife enthusiasts. Etosha is indeed one of the most special game parks in Africa and the most diverse park in Namibia.

What is the best time to visit Etosha National Park?

The best time to visit the park is during the dry season which in Namibia, is during the winter months. This is when many of the animals are concentrated at waterholes and the grass is low, allowing for a better viewing experience.

How to visit Etosha National Park in Namibia🇳🇦

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Pixabay, Dick Hoskins, Roger Brown, Roger Brown