Can't activate the licence Booking system

Hi,

I have follow the process but i can’t activate my licence that i have bought

To activate your licence follow the steps:

Step 1 – Sign into your WordPress admin.
Step 2 – Go to Pinpoint Booking System -> Settings page.
Step 3 – Select Licences submenu.
Step 4 – Enter the licence key and the email you used on our shop. Only this combination will work. You cannot use another email.
Step 5 – Click Activate to activate the plugin/add-on.

The step 4 is not available ?

Thanks for your help

Roland

https://www.ads-software.com/plugins/booking-system/