Click on "Buy subscription" on the top right-hand corner:
If you haven't done it yet, the system will ask you to fill in your billing details. Go to My account - Billing Details and fill in the details. Please bear in mind that these are the details that will appear in your invoice.
Once you save the changes, the system will ask you to choose your property type:
After choosing your property type, it will ask you to confirm the amount of properties and rooms -if needed- you would like to add:
Once you have clicked on Continue you will need to enter your card details in order to finalize the purchase, click on "Subscribe"